Question

Starting from rest at the top of an inclined plane a body reaches the

bottom of the inclined plane in 4 second. In what time does the body

cover one-fourth the distance starting from rest at the top?

A. 1 second B. 2 second

C. 3 second D. 4 second​

Answer 1

Answer

time to reach the bottom = 4 seconds  

a = acceleration  

x = distance to the bottom  

t = time to reach one fourth of the distance

x=1/2a(4)^2

=8a......1st eq

x/4=1/2at^2

t=√x/2a.......2nd

from 1 and 2

t=√8a/2a

=√4

=2 seconds

hope it helps

Answer 2

Answer:

option - b ; 2 seconds is the correct answer of this question

Explanation: