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Ball thrown vertically upwards

Q: A tennis ball is thrown vertically upward with an initial velocity of +6.7 m/s. What will the ball’s velocity be when it returns to its starting point? The acceleration of gravity is 9.81 m/s^2.


Its velocity will be – 6.7 m/s.

This is true for anything that is thrown vertically upwards. Look . . . → Read More: Ball thrown vertically upwards

Vertical Motion of a Rocket

Q: A rocket moves upward, starting from rest with an acceleration of 27.2 m/s2 for 3.49 s. It runs out of fuel at the end of the 3.49 s, but does not stop. How high does it rise above the ground?

A: Okay the rocket’s moving up with an acceleration of +27.2m/s^2 for a . . . → Read More: Vertical Motion of a Rocket