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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