Question

a body on a inclined plane slides down 1/4 of distance in 2 sec .it will slide down the complete distance along the plane in (the inclined plane have 0 friction) ??​

Answer 1

Answer:

Assumption: Initial velocity of the body is zero.

The body will slide down with a constant acceleration as the force acting on the body is constant.

Using second equation of motion,

s=ut+

2

1

at

2

Let the total distance along the plane be L.

Then, for one-fourth of the distance,

4

L

=

2

1

a×2

2

..........(i)

For complete distance,

L=

2

1

a×t

2

..........(ii)

Using (i) & (ii), t=4 s