Question

1. A ball is thrown upward at 25 m/s from the ground.
• What is the initial velocity of the ball?
• What is the acceleration of the ball?
• What is the ball’s velocity after 2 seconds?
• What is the ball’s velocity after 4 seconds?
• What is the maximum height of the ball?
• How long until the ball hits the ground?
• When is the magnitude of the velocity 5 m/s?
• What distance has the ball travelled after 5 seconds?
• What is the average velocity and average speed of the ball after 5 seconds?
• Another ball is thrown one second later. What speed does it need to hit the ground simultaneously with the first ball?

2. An airplane accelerates down a runway at 3.20 m/s2 for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff.

3. A stone is dropped into a deep well and is heard to hit the water, after being dropped, how much time will it take to take if the depth of the well is 57m.
4. Find the forces in all five cables if the cylinder has a weight of 30kg.

Answer 1

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