Question

1 ball is thrown upwards initial=40m/s final velocity=0m/s time taken=0.5 find acceleration?​

Answer 1

Solution

Initial velocity (u) = 40 m/s

Final velocity (v) = 0 m/s

Time taken = 0.5 sec.

By Newton's first equation of motion

:- (v = u + at)

v = u + at

0 = 40 + a(0.5)

0.5a = - 40

a = - 80 m/s² ['-ve' sign shows that the retardation takes place]