Question

the uniform acceleration with which a man could start running from rest behind a bus that goes past him with a constant acceleration of 5m/s on a straight road to catch it in 20m distance from start is ?

Answer 1

the ans=2.5m/s^2

Answer 2

the bus travels with constant acceleration ir constant velocity?

Answer 3

*or

Answer 4

constant speed

Answer 5

a constant acceleration this is wrong it is contant speed

Answer 6

sorry for the mistake

Answer 7

Since the bus travels with uniform speed
use s=ut
20=5t
t=4
use s=ut+1/2at^2 for the man
here t will be 4s
initial velocity is 0 bcoz the person starts frm rest.
20=1/2*a*16
20=8a
a=2.5

Answer 8

thanzz