Question

A ball is falling freely form a certain height. It reaches the ground after 3 seconds. If 30m/s is the velocity if the ball while touching the ground then.
a) What is the initial velocity of the ball?
b) What is the final velocity of the ball?
c) Calculate it's acceleration?
d) Determine whether the motion is retardation or not?





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Answer 1

Question is wrong bro pls check it again

Answer 2

Answer:

a) initial velocity is 0m/s

b)final velocity is 30m/s

c) accln = v-u/t

30-0/3

=30/3

=10 m/s -2

d) the motion is not retardation because accln is 10 m/s -2

Explanation:

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