Problem 2.2QQ: Are officers in the highway patrol more interested in (a) your average speed or (b) your... Problem 2.3QQ: Make a velocitytime graph for the car in Figure 2.1a. Suppose the speed limit for the road on which... Problem 2.4QQ: If a car is traveling eastward and slowing down, what is the direction of the force on the car that... Problem 2.5QQ: Which one of the following statements is true? (a) If a car is traveling eastward, its acceleration... Problem 2.6QQ: In Figure 2.12, match each vxt graph on the top with the axt graph on the bottom that best describes... Problem 2.7QQ: Consider the following choices: (a) increases, (b) decreases, (c) increases and then decreases, (d)... Problem 2.1OQ: One drop of oil falls straight down onto the road from the engine of a moving car every 5 s. Figure... Problem 2.2OQ: A racing car starts from rest at t = 0 and reaches a final speed at time t. II the acceleration of... Problem 2.3OQ: A juggler throws a bowling pin straight up in the air. After the pin leaves his hand and while it is... Problem 2.4OQ: When applying the equations of kinematics for an object moving in one dimension, which of the... Problem 2.5OQ: A cannon shell is fired straight up from the ground at an initial speed of225 m/s. After how much... Problem 2.6OQ: An arrow is shot straight up in the air at an initial speed of 15.0 m/s. After how much time is the... Problem 2.7OQ: When the pilot reverses the propeller in a boat moving north, the boat moves with an acceleration... Problem 2.8OQ: A rock is thrown downward from the top of a 40.0-in-tall tower with an initial speed of m/s.... Problem 2.9OQ: A skateboarder starts from rest and moves down a hill with constant acceleration in a straight line,... Problem 2.10OQ: Oil another planet, a marble is released from rest at the top of a high cliff It Jails 4.00 m in the... Problem 2.11OQ: As an object moves along the .v axis, many measurements are made of its position, enough to generate... Problem 2.12OQ: A pebble is dropped from rest from the lop of a tall cliff and falls 4.9 m after 1.0 s has elapsed.... Problem 2.13OQ: A student at the top of a building of height h throws one ball upward with a speed of i and then... Problem 2.14OQ: Von drop a ball from a window located on an upper floor of a building. It strikes the ground with... Problem 2.15OQ: A pebble is released from rest at a certain height and falls freely, reaching an impact speed of 4... Problem 2.16OQ: A ball is thrown straight up in the air. For which situation are both the instantaneous velocity and... Problem 2.17OQ: A hard rubber ball, not affected by air resistance in its motion. is tossed upward from shoulder... Problem 2.18OQ: Each of the strobe photographs (a), (b). and (c) in Figure OQ2.18 was taken of a single disk moving... Problem 2.1CQ: If the average velocity of an object is zero in some time interval, what can you say about the... Problem 2.2CQ: Try the following experiment away from traffic: where you can do it Safely. With the car VOU are... Problem 2.3CQ Problem 2.4CQ Problem 2.5CQ Problem 2.6CQ: You throw a ball vertically upward so that it leaves the ground with velocity +5.00 m/s. (a) What is... Problem 2.7CQ: (a) Can (he equations of kinematics (Eqs. 2.13-2.17) be used in a situation in which the... Problem 2.8CQ: (a) Can the velocity of an object at an instant of time be greater in magnitude than the average... Problem 2.9CQ: Two cars are moving in the same direction in parallel lanes along a highway. At some instant, the... Problem 2.1P: Section 2.1 Position, Velocity, and Speed The position versus time for a certain particle moving m... Problem 2.2P: The speed of a nerve impulse in the human body is about 100 m/s. If you accidentally stub your toe... Problem 2.3P: A prison walks first al a constant speed of 5.00 m/s along a straight line from point to point and... Problem 2.4P: A particle moves according to the equation x = 10t2, where x is in meters and t is in seconds. (a)... Problem 2.5P: The position of a pinewood derby car was observed at various times; the results are summarized in... Problem 2.6P: The position of a particle moving along the x axis varies in time according to the expression x =... Problem 2.7P: A positiontime graph for a particle moving along the x axis is shown in Figure P2.5. (a) Find the... Problem 2.8P: An athlete leaves one end of a pool of length L at t = 0 and arrives at the other end at time t1.... Problem 2.9P: Find the instantaneous velocity of the particle described in Figure P2.1 at the following times: (a)... Problem 2.10P: Review. The North American and European plates of the Earths crust are drifting apart with a... Problem 2.11P: A hare and a tortoise compete in a race over a straight course 1.00 km long. The tortoise crawls at... Problem 2.12P: A car travels along a straight line at a constant speed of 60.0 mi/h for a distance d and then... Problem 2.13P: A person takes a trip, driving with a constant speed of 89.5 km/h, except for a 22.0-min rest stop.... Problem 2.14P: Review. A 50.0-g Super Ball traveling al 25.0 m/s bounces of a brick wall and rebounds at 22.0 m/s.... Problem 2.15P: A velocity-time graph for an object moving along the x axis is shown in Figure P2.15. (a) Plot a... Problem 2.16P: A child rolls a marble on a bent track that is 100 cm long as shown in Figure P2.8. We use x to... Problem 2.17P: Figure P2.9 shows a graph of vx versus t for the motion of a motorcyclist as he starts from rest and... Problem 2.18P: (a) Use the data in Problem 3 to construct a smooth graph of position versus time. (b) By... Problem 2.19P: A particle starts from rest and accelerates as shown in Figure P2.11. Determine (a) the particles... Problem 2.20P: An object moves along the x axis according to the equation x = 3.00t 2 - 2.00t + 3.00, where x is in... Problem 2.21P: A panicle mows along the x axis according to the equation x = 2.00 + 3.00t - 1.00t2, where x is in... Problem 2.22P: Draw motion diagrams for (a) an object moving to the right at constant speed, (b) an object moving... Problem 2.23P: Each of the strobe photographs (a), (b), and (c) in Figure P2.13 was taken of a single disk moving... Problem 2.24P: The minimum distance required to stop a car moving at 35.0 mi/h is 40.0 ft. What is the minimum... Problem 2.25P: An electron in a cathode-ray tube accelerates uniformly from 2.00 104 m/s to 6.00 106 m/s over... Problem 2.26P: A speedboat moving at 30.0 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the... Problem 2.27P: A parcel of air moving in a straight tube with a constant acceleration of 4.00 m/s2 has a velocity... Problem 2.28P: A truck covers 40.0 m in 8.50 s while smoothly slowing down to a final speed of 2.80 m/s. (a) Find... Problem 2.29P: An object moving with uniform acceleration has a velocity of 12.0 cm/s in the positive x direction... Problem 2.30P: In Example 2.7, we investigated a jet landing on an aircraft carrier. In a later maneuver, the jet... Problem 2.31P Problem 2.32P: Solve Example 2.8 by a graphical method. On the same graph, plot position versus time for the car... Problem 2.33P: A truck on a straight road starts from rest, accelerating at 2.00 m/s2 until it reaches a speed of... Problem 2.34P: Why is the following situation impossible? Starting from rest, a charging rhinoceros moves 50.0 m in... Problem 2.35P: The driver of a car slants on the brakes when he sees a tree blocking the road. The car slows... Problem 2.36P Problem 2.37P: A speedboat travels in a straight line and increases in speed uniformly from i = 20.0 m/s to f =... Problem 2.38P: A particle moves along the x axis. Its position is given by the equation x = 2 + 3t 4t2, with x in... Problem 2.39P: A glider of length moves through a stationary photogate on an air track. A photogate (Fig. P2.19)... Problem 2.40P: A glider of length 12.4 cm moves on an air track with constant acceleration (Fig P2.19). A time... Problem 2.41P: An object moves with constant acceleration 4.00 m/s2 and over a lime interval reaches a final... Problem 2.42P: At t = 0, one toy car is set rolling on a straight track with initial position 15.0 cm, initial... Problem 2.43P: Figure P2.43 represents part of the performance data of a car owned by a proud physics student, (a)... Problem 2.44P: A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a... Problem 2.45P: In Chapter 9, we will define the center of mass of an object and prove that its motion is described... Problem 2.46P: An attacker at the base of a castle wall 3.65 m high throws a rock straight up with speed 7.40 m/s... Problem 2.47P: Why is the following situation impossible? Emily challenges David to catch a 1 bill as follows. She... Problem 2.48P: A baseball is hit so that it travels straight upward after El being struck by the bat. A fan... Problem 2.49P: It is possible to shoot an arrow at a speed as high as 100 m/s. (a) If friction can be ignored, how... Problem 2.50P: The height of a helicopter above the ground is given by h = 3.00t5, where h is in meters and t is in... Problem 2.51P Problem 2.52P: A ball is thrown upward from the ground with an initial speed of 25 m/s; at the same instant,... Problem 2.53P: A student throws a set of keys vertically upward to her sorority sister, who is in a window 4.00 m... Problem 2.54P: At time t = 0, a student throws a set of keys vertically upward to her sorority sister, who is in a... Problem 2.55P: A daring ranch hand sitting on a tree limb wishes to drop vertically onto a horse galloping under... Problem 2.56P: A package is dropped at time t = 0 from a helicopter that is descending steadily at a speed i. (a)... Problem 2.57P: Automotive engineers refer to the time rate of change of acceleration as the jerk. Assume an object... Problem 2.58P: A student drives a moped along a straight road as described by the velocitytime graph in Figure... Problem 2.59P: The speed of a bullet as it travels down the barrel of a rifle toward the opening is given by =... Problem 2.60AP: A certain automobile manufacturer claims that its deluxe sports car will accelerate from rest to a... Problem 2.61AP: The froghopper Philaenus spumarius is supposedly the best jumper in the animal kingdom. To start a... Problem 2.62AP: An object is at x = 0 at t = 0 and moves along the x axis according to the velocity-time graph in... Problem 2.63AP: Ail inquisitive physics student and mountain climber climbs a 50.0-m-high cliff that overhangs a... Problem 2.64AP: In Figure 2.11b, the area under the velocitytime graph and between the vertical axis and time t... Problem 2.65AP: A ball starts from rest and accelerates at 0.5(H) m/s2 while moving down an inclined plane 9.00 m... Problem 2.66AP: A woman is reported to have fallen 144 ft from the 17th floor of a building, landing on a metal... Problem 2.67AP: An elevator moves downward in a tall building at a constant speed of 5.00 m/s. Exactly 5.00 s after... Problem 2.68AP: Why is the following situation impossible? A freight train is lumbering along at a constant speed of... Problem 2.69AP: The Acela is an electric train on the Washington-New YorkBoston run, carrying passengers at 170... Problem 2.70AP: Two objects move with initial velocity 8.00 m/s, final velocity 16.0 m/s. and constant... Problem 2.71AP: At t = 0, one athlete in a race running on a long, straight track with a constant speed v1 is a... Problem 2.72AP: A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed... Problem 2.73AP: Kathy tests her new sports car by racing with Sian, an experienced racer. Both start from rest, but... Problem 2.74AP: Two students are on a balcony a distance h above the street. One student throws a ball vertically... Problem 2.75AP: Two objects, A and B, are connected by hinges to a rigid rod that has a length L. The objects slide... Problem 2.76AP: Astronauts on a distant planet toss a rock into the air. With the aid of a camera that takes... Problem 2.77AP: A motorist drives along a straight road at a constant speed of 15.0 m/s. Just as she passes a parked... Problem 2.78AP: A commuter train travels between two downtown stations. Because the stations are only 1.00 km apart,... Problem 2.79AP: Lisa rushes down onto a subway platform to find her train already departing. She stops and watches... Problem 2.80AP: A hard rubber ball, released at chest height, falls to the pavement and bounces back to nearly the... Problem 2.81CP: A blue car of length 4.52 m is moving north on a roadway (hat intersects another perpendicular... Problem 2.82CP: Review. As soon as a traffic light turns green, a car speeds up from rest to 50.0 mi/h with constant... Problem 2.83CP: In a womens 100-m race, accelerating uniformly, Laura takes 2.00 s and Healan 3.00 s to attain their... Problem 2.84CP: Two thin rods are fastened to the inside of a circular ring as shown in Figure P2.42. One rod of... Problem 2.85CP: A man drops a rock into a well, (a) The man hears the sound of the splash 2.40 s after he releases... format_list_bulleted
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