Problem 1CQ: A person gets in an elevator on the ground floor and rides it to the top floor of a building. Sketch... Problem 2CQ: a. Give an example of a vertical motion with a positive velocity and a negative acceleration. b.... Problem 3CQ: Figure Q2.3 shows growth rings in the trunk of a pine tree. You can clearly see the wide and the... Problem 4CQ: Sketch a velocity-versus-time graph for a rock that is thrown straight upward, from the instant it... Problem 5CQ: You are driving down the road at a constant speed. Another car going a bit faster catches up with... Problem 6CQ: A car is traveling north. Can its acceleration vector ever point south? Explain. Problem 8CQ: A ball is thrown straight up into the air. At each of the following instants, is the ball's... Problem 9CQ: A rock is thrown (not dropped) straight down from a bridge into the river below. a. Immediately... Problem 10CQ: Figure Q2.10 shows an object's position-versus-time graph. The letters A to E correspond to various... Problem 11CQ: Figure Q2.11 shows the position graph for an object moving along the horizontal axis. Figure Q2.11... Problem 12CQ: Figure Q2.12 shows the position-versus-time graphs for two objects, A and B, that are moving along... Problem 13CQ: Figure Q2.13 shows a position-versus-time graph. At which lettered point or points is the object... Problem 14CQ: Figure Q2.14 is the velocity-versus-time graph for an object moving along the x-axis. Figure Q2.14... Problem 15MCQ: Figure Q2.15 shows the position graph of a car traveling on a straight road. At which labeled... Problem 16MCQ: Figure Q2.16 shows the position graph of a car travel-ing on a straight road. The velocity at... Problem 17MCQ: Figure Q2.17 shows an object's position-versus-time graph. What is the velocity of the object at t =... Problem 18MCQ: The following options describe the motion of four cars A-D. Which car has the largest acceleration?... Problem 19MCQ: A car is traveling at Vx = 20 m/s. The driver applies the brakes, and the car slows with ax = -4.0... Problem 20MCQ: Velocity-versus-time graphs for three drag racers are shown in Figure 02.20. At t = 5.0 s, which car... Problem 21MCQ: Which of the three drag racers in Question 20 had the greatest acceleration at t = 0 s? A. Andy B.... Problem 22MCQ: Chris is holding two softballs while standing on a balcony. She throws ball 1 straight up in the air... Problem 23MCQ: Suppose a plane accelerates from rest for 30 s, achieving a takeoff speed of 80 m/s after traveling... Problem 24MCQ: Figure Q2.24 shows a motion diagram with the clock reading (in seconds) shown at each position. From... Problem 25MCQ: A car can go from 0 to 60 mph in 7.0 s. Assuming that it could maintain the same acceleration at... Problem 26MCQ: A car can go from 0 to 60 mph in 12 s. A second car is capable of twice the acceleration of the... Problem 1P: Figure P2.1 shows a motion diagram of a car traveling down a street. The camera took one frame every... Problem 2P: For each motion diagram in Figure P2.2, determine the sign (positive or negative) of the position... Problem 3P: The position graph of Figure P2.3 shows a dog slowly sneaking up on a squirrel, then putting on a... Problem 4P: A rural mail carrier is driving slowly, putting mail in mailboxes near the road. He overshoots one... Problem 5P: For the velocity-versus-time graph of Figure P2.5: Figure P2.5 a. Draw the corresponding... Problem 6P: A bicyclist has the position-versus-time graph shown in Figure P2.6. What is the bicyclist's... Problem 7P: In major league baseball, the pitcher's mound is 60 feet from the batter. If a pitcher throws a 95... Problem 8P: In college softball, the distance from the pitcher's mound to the batter is 43 feet. If the ball... Problem 9P: Alan leaves Los Angeles at 8:00am to drive to San Francisco, 400 mi away. He travels at a steady 50... Problem 10P: Richard is driving home to visit his parents. 125 mi of the trip are on the interstate highway where... Problem 11P: In a 5.00 km race, one runner runs at a steady 12.0 km/h and another runs at 14.5 km/h. How long... Problem 12P: In an 8.00 km race, one runner runs at a steady 11.0 km/h and another runs at 14.0 km/h. How far... Problem 13P: A car moves with constant velocity along a straight road. Its position is x1 = 0 m at t1 = 0 s and... Problem 14P: While running a marathon, a long-distance runner uses a stopwatch to time herself over a distance of... Problem 15P: Figure P2.1 shows the position graph of a particle. Figure P2.15 a. Draw the particle's velocity... Problem 16P: A somewhat idealized graph of the speed of the blood in the ascending aorta during one beat of the... Problem 17P: A car starts from Xi = 10 m at ti = 0 s and moves with the velocity graph shown in Figure P2.17.... Problem 18P: Figure P2.18 shows a graph of actual position-versus-time data for a particular type of drag racer... Problem 19P: Figure P2.19 shows the velocity graph of a bicycle. Draw the bicycle's acceleration graph for the... Problem 20P: We set the origin of a coordinate system so that the position of a train is x = 0 m at t = 0 s.... Problem 21P: For each motion diagram shown earlier in Figure P2.2, determine the sign (positive or negative) of... Problem 22P: Figure P2.16 showed data for the speed of blood in the aorta. Determine the magnitude of the... Problem 23P: Figure P2.23 is a somewhat simplified velocity graph for Olympic sprinter Carl Lewis starting a 100... Problem 24P: Small frogs that are good jumpers are capable of remarkable accelerations. One species reaches a... Problem 25P: A Thomson's gazelle can reach a speed of 13 m/s in 3.0 s. A lion can reach a speed of 9.5 m/s in 1.0... Problem 26P: When striking, the pike, a predatory fish, can accelerate from rest to a speed of 4.0 m/s in 0.11 S.... Problem 27P: a. What constant acceleration, in SI units, must a car have to go from zero to 60 mph in 10 s? b.... Problem 28P: When jumping, a flea rapidly extends its legs, reaching a takeoff speed of 1.0 m/s over a distance... Problem 29P: A car traveling at speed v takes distance d to stop after the brakes are applied. What is the... Problem 30P: Light-rail passenger trains that provide transportation within and between cities speed up and slow... Problem 31P: A cross-country skier is skiing along at a zippy 8.0 m/s. She stops pushing and simply glides along,... Problem 32P: A small propeller airplane can comfortably achieve a high enough speed to take off on a runway that... Problem 33P: Formula One racers speed up much more quickly than normal passenger vehicles, and they also can stop... Problem 34P: Figure P2.34 shows a velocity-versus-time graph for a particle moving along the x-axis. At t = 0 s,... Problem 35P: A driver has a reaction time of 0.50 s, and the maximum deceleration of her car is 6.0 m/s2. She is... Problem 36P: Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. In a... Problem 37P: You're driving down the highway late one night at 20 m/s when a deer steps onto the road 35m in... Problem 38P: A light-rail train going from one station to the next on a straight section of track accelerates... Problem 39P: A car is traveling at a steady 80 km/h in a 50 km/h zone. A police motorcycle takes off at the... Problem 40P: When a jet lands on an aircraft carrier, a hook on the tail of the plane grabs a wire that quickly... Problem 41P: A simple model for a person running the 100m dash is to assume the sprinter runs with constant... Problem 42P: Ball bearings can be made by letting spherical drops of molten metal fall inside a tall tower called... Problem 43P: Here's an interesting challenge you can give to a friend. Hold a 1 (or larger!) bill by an upper... Problem 44P: In the preceding problem we saw that a person's reaction time is generally not quick enough to allow... Problem 45P: A gannet is a seabird that fishes by diving from a great height. If a gannet hits the water at 32... Problem 46P: A student at the top of a building of height h throws ball A straight upward with speed v0 and... Problem 47P: Excellent human jumpers can leap straight up to a height of 110 cm off the ground. To reach this... Problem 48P: A football is kicked straight up into the air; it hits the ground 5.2 s later. a. What was the... Problem 49P: In an action movie, the villain is rescued from the ocean by grabbing onto the ladder hanging from a... Problem 50P: Spud Webb was, at 5 ft 8 in, one of the shortest basketball players to play in the NBA. But he had... Problem 51P: A rock climber stands on top of a 50-m-high cliff overhanging a pool of water. He throws two stones... Problem 52GP: Actual velocity data for a lion pursuing prey are shown in Figure P2.52. Estimate: Figure P2.52 a.... Problem 53GP: A truck driver has a shipment of apples to deliver to a desti-nation 440 miles away. The trip... Problem 54GP: When you sneeze, the air in your lungs accelerates from rest to approximately 150 km/h in about 0.50... Problem 55GP: Figure P2.55 shows the motion diagram, made at two frames of film per second, of a ball rolling... Problem 56GP: Julie drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half the... Problem 57GP: The takeoff speed for an Airbus A320 jetliner is 80 m/s. Velocity data measured during takeoff are... Problem 58GP: Does a real automobile have constant acceleration? Measured data for a Porsche 944 Turbo at maximum... Problem 59GP: People hoping to travel to other worlds are faced with huge challenges. One of the biggest is the... Problem 60GP: You are driving to the grocery store at 20 m/s. You are 110 m from an intersection when the traffic... Problem 61GP: When you blink your eye, the upper lid goes from rest with your eye open to completely covering your... Problem 62GP: A bush baby, an African primate, is capable of a remarkable vertical leap. The bush baby goes into a... Problem 63GP: When jumping, a flea reaches a takeoff speed of 1.0 m/s over a distance of 0.50 mm. a. What is the... Problem 64GP: Certain insects can achieve seemingly impossible accelerations while jumping. The click beetle... Problem 65GP: A student standing on the ground throws a ball straight up. The ball leaves the student's hand with... Problem 66GP: A rock is tossed straight up with a speed of 20 m/s. When it returns, it falls into a hole 10m deep.... Problem 67GP: A 200 kg weather rocket is loaded with 100 kg of fuel and fired straight up. It accelerates upward... Problem 68GP: A hotel elevator ascends 200m with a maximum speed of 5.0 m/s. Its acceleration and deceleration... Problem 69GP: A car starts from rest at a stop sign. It accelerates at 2.0 m/s2 for 6.0 seconds, coasts for 2.0 s,... Problem 70GP: A toy train is pushed forward and released at xi = 2.0 m with a speed of 2.0 m/s. It rolls at a... Problem 71GP: Heather and Jerry are standing on a bridge 50 m above a river. Heather throws a rock straight down... Problem 72GP: A Thomson's gazelle can run at very high speeds, but its acceleration is relatively modest. A... Problem 73GP: We've seen that a man's higher initial acceleration means that a man can outrun a horse over a very... Problem 74GP: A pole-vaulter is nearly motionless as he clears the bar, set 4.2 m above the ground. He then falls... Problem 75GP: A Porsche challenges a Honda to a 400 m race. Because the Porsche's acceleration of 3.5 m/s2 is... Problem 76GP: The minimum stopping distance for a car traveling at a speed of 30 m/s is 60 m, including the... Problem 77GP: A rocket is launched straight up with constant acceleration. Four seconds after liftoff, a bolt... Problem 78MSPP: Free Fall on Different Worlds Objects in free fall on the earth have acceleration ay = 9.8 m/s2. On... Problem 79MSPP: Free Fall on Different Worlds Objects in free fall on the earth have acceleration ay = 9.8 m/s2. On... Problem 80MSPP: Free Fall on Different Worlds Objects in free fall on the earth have acceleration ay = 9.8 m/s2. On... format_list_bulleted