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The diagram below shows part of the motion of a tennis ball, which is projected vertically upwards from the ground and allowed to bounce on...

      

The diagram below shows part of the motion of a tennis ball, which is projected vertically upwards from the ground and allowed to bounce on the ground. Use this information to answer questions that follow.

ball126320191145.png

a) Describe the motion of the ball relating it to different positions of the ball along the following AB, BC, CDE.
b) From the graph, calculate the acceleration due to gravity.
c) How high does the ball rise initially?
d) Explain why E is not at the same level as A.

  

Answers


Wilfred
a) AB- ball rising to max height
BC- ball falling to ground
CDE- ball rebouncing/ changing velocity from +ve to –ve

b) Acceleration = gradient = 19.8 = 9.9 m/s2

c) Displacement = area
= ½ x 2 x 19.8 = 19.8m

d) Upon hitting the ground the ball looses some energy.
Wilfykil answered the question on March 26, 2019 at 08:49


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