A ball is released from a height and it reaches the ground in 3 s. If g= 9.8 m s-2, find the value for the following variables: (a) The height from which the ball was released. (b) The velocity with which the ball will strike the ground.
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Answer:
a. 44.1 mtrs
b. 29.4 m s-²
Explanation:
Given:
t = 3s
a = -9.8
using consept of free fall
S = 1/2 gt² = 1/2 x -9.8 x 9 = -44.1
v = -gt = +9.8 x 3 = 29.4
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