On the distant planet of Zoot, our heroine shoots an arrow vertically into the a

Question

On the distant planet of Zoot, our heroine shoots an arrow vertically into the air. The plot of height vs time of flight is shown above. The height is the disance above the release point and t=0 sec when it is first released.

On the distant planet of Zoot, our heroine shoots an arrow vertically into the air. The plot of height vs time of flight is shown above. The height is the disance above the release point and t=0 sec when it is first released. 1) What is the free-fall acceleration on this planet? gZoot= m/sec2 2) What is the initial velocity of the ball? vi=

Explanation / Answer

g_zoot=2h/t^2=2*25/2.5^2=8m/sec^2 v^2=u^2-2gh v=0 u=(2gh)^1/2=(2*8*25)^1/2=20m/sec

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