Question

a car starts from rest amd moves 8seconds with acc 5m/s2 If it continues with constant velocity thwn find distance covered on 12 sec​

Answer 1

a car starts from rest amd moves 8seconds with acc 5m/s2 If it continues with constant velocity thwn find distance covered on 12 sec

distance

Answer 2

V=u+at

v=0+5m/s^2*8

v=40m/s

constant velocity=40m/s

distance covered in the first 8 sec = S=1/2a*t^2=160m.

distance covered in the last 4 sec=const. speed*time=40m/s*4=160m

total distance covered in 12 sec=160+160=320m ans.

ans=320m