* (m/s) 2. 1 -t (s) 10 2 6 -1 -2구 -34 FIGURE P2.4 -0- 4.

A stone is dropped at height 500 m from the ground. After 2 seconds, another stone isthrown upward with an initial velocity of 70 m/s. Assume acceleration due to gravity is9.81 m/s2.a. What is the time when they will meet?b. What is the height h, from the ground, where they will meet?

An object is thrown straight up with an initial velocity of 31 m/s. a. How high does it go in meters? b. How long is it in the air in seconds?

Suppose that the gravitational acceleration on a certain planet is only 3.0 m/s2. A space explorer standing on this planet throws a ball straight upward with an initial velocity of 18 m/s. a. What is the velocity of the ball 4 seconds after it is thrown? b. How much time elapses before the ball reaches the highpoint in its flight?

HOW?An automobile travels on straight road for 39km at 24km/h. If then continues in the same direction for another 39 km at 48km/h.  a. What is the average velocity of the car during his 78 km trip? (Assume that it moves positive direction) b. What is the average speed?

An object moves in one dimension, and its velocity versus time is shown in the graph. Express your answers in m/s2. A. What is the average acceleration between the times 0 s and 20 s?  B. What is the average acceleration between the times 20 s and 50 s?  C. What is the average acceleration between the times 50 s and 70 s?  D. What is the average acceleration between the times 0 s and 100 s?

a. Draw the velocity graphs of Vy and Vx as a function of time. b.Draw x and y component of the position as a function of time. c. how long does it take for the rock to hit the ground? d. what is distance X where the rock hits the ground from the base of the vertical cliff?

A car is driving on I-80 traveling at 75 mph. It passes a police officer on the side of the road who is stationary. The moment that the car passes the police officer, the officer accelerates at a constant rate of 20 ft/s2 until she reaches a speed of 80 mph. At that point, her speed is maintained.  a. How far does the police car travel before reaching its full speed (in ft)? b. How far does the car travel while the police car is speeding up (in ft)? c. How far does the police car travel before catching up with the car (in ft)?

When Sam drove at 9.5 m/s on university blvd, she passed her friend, Jess who was riding a bike at 5.0m/s. As Sam was passing Jess, she started to slow down while Jess kept her constant speed. So Jess caught up to Sam after 3 seconds. a.) Determine the distance traveled by Jess when she caught up to Sam.

After about 20 minutes, you begin to pick up velocity. You realize that you are headed toward a waterfall. Let’s hope it isn’t too high…. You reach the top of the waterfall traveling at 20 m/s. The waterfall is 1.6 m high. a. How long are you in the air?b. How far away from the base of the waterfall does your boat land?