Question

Object starting from rest attains velocity of 20m/s in 5 sec. find its acceleration and distance travelled

by it in 5 sec. Find its velocity after 8s.​

Answer 1

Explanation:

u=0

v=20

t=5

v=u+at

20=a×5---->a=4m/s²

s=ut+1/2at²

s=1/2×4×25--->s=50m

v after 8 sec

v=u+at

v=0+4×8

=

v=32m/s