Question

if the velocity of a body increase from 5m/s to 20m/s in 4sec . then find the acceleration of the body​

Answer 1

Answer:

15/4 m/sec^2

Explanation:

acceleration = rate of change of v with time.=$\frac{v2-v1}{t}$

here v1=5m/sec

v2=20 m/sec

and t= 4 sec

so v2-v1= 20-5=15

so a=15/4 m/sec^2

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Answer 2

Answer:

Acceleration=change of velocity/time

=final velocity-initial velocity/t

final velocity=20 m/s

initial velocity=5 m/s

time=4 sec

so, acceleration=20-5/4

=15/4=3.75

acceleration=3.75 m/s²