Question

a body is sliding down an inclined plane forming an angle 30. with the horizontal .if the coeffecient of friction is 0.3, then acceleration of the body is​

Answer 1

Given :-

Angle = Ø = 30°

Coefficient of Friction = µ = 0.3

As we know that when body will slide down it will have two components i.e. gCosØ and gSinØ.

Here in this case, body will follow gSinØ.

a = µgSinØ

a = 0.3 × 10 × Sin30°

a = 3 × 1/2

a = 1.5 ms-²

Hence,

The acceleration of body = a = 1.5 ms-².

Here, the Friction will be acting in opposite direction of motion of the body and total three forces will be acting on the body. In Perpendicular direction Normal Force will be acting, in opposite of motion Friction force will be acting and in direction of motion simple force will be acting by the acceleration of body.