Part A,B: Use the formula given in the problem text for the height h twice, for the moon and the earth.
Part C: Assume the ball starts from ground. What is the velocity at the highest point of the tyravel ? See Ch2 Sheet 13 for the equation which gives you the rise time. Solve for the rise time. Is the rise time different from the fall time ?
Write the equation for the solution of the rise time down twice, for the earth and for the moon and get the ratio of the two times.
2 comments:
for part c, shouldnt the rise time be half of the total time in the air. I got the right answer but i used 3 seconds. shouldnt it be 1.5 seconds for the rise time?
Yes, you are correct. The rise time is half the time of the total time. But the question is asking for the time passed until the ball hits the ground, so you want to use time up and time down.
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