You throw ball A upward and notice the time it takes to come back. If you throw an identical ball B so that it takes twices as much time to come back, what must be true about the motion for ball B? a. Ball B travels twice the upward distance of ball A O b. Ball B has twice the initial speed of balI A O . Ball B had twice the acceleration on the way up as ball A d. Ball B stopped at the highest point and had zero acceleration at the point

What should a graph of the velocity vs time look like if it shows an object moving to the left at a constant velocity? Select one: O An upwards curved parabola. O A downwards curved parabola. O A straight line with zero slope that is below the x-axis. O A straight line sloping downward. O A straight line sloping upward. O A straight line with zero slope that is above the x-axis.

A student rolls a marble across a table and off the edge. At the instant the marble leaves the edge of the table, she drops, from rest, a second marble straight down from the same height. Consider the following statements about the motion of the marbles: 1. Both have equal accelerations. II. Both strike the floor at the same time. III. Both have the same velocity at the instant they strike the floor. If air resistance is ignored, which statement(s) is(are) true? I only II only III only I and II only I, II and III

You throw ball A upward and notice the time it takes to come back.  If you throw an identical ball B so that it takes twice as much time to come back, what must be true about the motion for ball B?     a. Ball B had twice the acceleration on the way up as ball A b. Ball B stopped at the highest point and had zero acceleration at the point c. Ball B travels twice the upward distance of ball A d. Ball B has twice the initial speed of ball A

The figure below shows velocity-versus-time graphs for two objects, A and B. What can we say about the distance between objects A and B? Vy The distance between A and B is always increasing. The distance between A and B first decreases and then increases. The distance between A and B is always decreasing. The distance between A and B first increases and then decreases. The distance between A and B remains constant. O O O O O

A black mamba snake has a length of 3.30 m and a top speed of 4.90 m/s. Suppose a mongoose and a black mamba find themselves nose to nose. In an effort to escape, the snake accelerates past the mongoose at 7.82 m/s2 from rest. How much time ?top does it take the snake to reach its top speed? How far ?snake does the snake travel in that time? How much time ?react does the mongoose have to react before the black mamba's tail passes the mongoose's nose?

Consider the following examples regarding distance, displacement, speed and velocitya. A track athlete runs a 1600-meter race in 250 seconds. In this race, they start and end atthe same point.i. Total distance traveled by the athlete?ii. Total displacement of the athlete?iii. Average velocity of the athlete for the race?iv. Average speed of the athlete for the race?b. A track athlete runs the 100 meter dash in 10 secondsi. Total distance traveled by the athlete?ii. Total displacement of the athlete?iii. Average velocity of the athlete for the race?iv. Average speed of the athlete for the race?

The highest Platform diving in the Olympic games is at the 10 meter height. a. What is the velocity of a diver entering the water from this platform if he steps off the platform initially? Round to nearest tenth. b. How much time does it take the diver to reach the water from the 10 m platform? Round to nearest tenth

A ball is dropped from a window 50 m above the ground. a) How long does it take the ball to reach theground?b) What is its final velocity?2. A pebble was dropped from the window of a building, 80 meters above the ground. a) How many seconds willit take the pebble to reach the ground? b) How fast is it after 2.0 seconds? c) When will its velocity be 25 m/s?3. A stone is tossed upward at the moment a ball is dropped from a height of 25 meters. The stone’s initialvelocity is 25 m/s. At what height will the two meet? In how many seconds.4. A ball is thrown downward with an initial velocity of 20 ft/s. a) How fast is it moving 2s later? b) How fardoes it fall in these time ?

The motomotorboat starting from rest travels in a straight line on a lake.  A.) if the boat aAchieves a speed of 8.0 m/s in 10s, what is the boats average acceleration?  B.) then, in 5.0 more seconds, the boat's speed is 12 m/s. What is the boat's average acceleration for the total time?