- How fast must a ball be thrown upward to reach a height of 12 m?

- A ball dropped from the roof of a building takes 4s to reach the street. How high is the building?

- When will a stone thrown vertically upward at 9.8 m/s reach the ground?

- The air resistance experienced by a falling object is not an important factor until a speed of about half its terminal speed is reached. The terminal speed of a golf ball is 40 m/s. How much time is needed for a dropped golf ball to reach a speed of half this? How far does it fall in this time?

- A rifle is aimed directly at the bull's-eye of a target 50m away. If the bullet's speed is 350 m/s, how far below the bull's-eye does the bullet strike the target?

- A ball is thrown horizontally from the roof of a building 20m high at 30 m/s. At what speed will the ball strike the ground

- An airplane whose speed is 60m/s is flying at an altitude of 500 m over the ocean toward a stationary sinking ship. At what horizontal distance from the ship should the crew of the airplane drop a pump into the water next to the ship? - Compare the tension in the coupling between the first two cars of a train with the tension in the coupling between the last two cars when (a) the train's speed is constant and (b) the train is accelerating. (The tension is the magnitude of the force either end of the coupling exerts on the car it is attached to.)

- A 12,000-kg airplane launched by a catapult from an aircraft carrier is accelerated from 0 to 200 km/h in 3 s. (a) How many times the acceleration due to gravity is the airplane's acceleration? (b) What is the average force the catapult exerts on the airplane?

- A force of 20 N gives an object an acceleration of 5 m/s^2. (a) What force would be needed to give the same object an acceleration of 1 m/s^2? (b) What force would be needed to give it an acceleration of 10 m/s^2 ?

- A 430-g soccer ball at rest on the ground is kicked with a force of 600 N and flies off at 15 m/s. How long was the toe of the person kicking the ball in contact with it? m/s^2 = meters per second squared