Homework Help: Physics

Posted by Vanessa on Wednesday, September 21, 2011 at 9:50pm.

A tennis ball is thrown vertically upward with an initial velocity of +7.0 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.

Answer in units of m/s

AND How long will the ball take to reach its starting
point?

Answer in units of s

Physics - mahesh patel, Wednesday, September 21, 2011 at 11:28pm
its velocity will be 7 m/s. because the velocity of a vertically projected body remains same at the point of projection even if it is in down ward direction.
Physics - mahesh patel, Wednesday, September 21, 2011 at 11:29pm
its velocity will be 7 m/s. because the velocity of a vertically projected body remains same at the point of projection even if it is in down ward direction.

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