Question

Find the horizontal force required to drag a body weighing 100N along a horizontal plane,if the plane when gradually raised upto 15 degree ,the body will begin to slide down.  a. 52 N b. 32N c. 27 N d. 48 N.​

Answer 1

Option C is correct where the force required is 27 N.

Given:
Body weighing 100N
Rise angle = 15 degree
To find: Horizontal force
Solution:
A force applied in a direction parallel to the horizon is known as horizontal force. The force exerted on a body consists of two components, namely the horizontal component and a vertical component. It affects in various way in daily life.
When a piece is hurled corner ways familiar the soil's surface, it takes a curved, never ending-spurring way to the center of the dust (we adopt that the atom debris nearly the surface of the ground). The way of such a atom is refer to as a bullet, and allure motion is refer to as bullet motion.

Force Required =

$= W × sin 15°\\= 100 × sin 15\\= 26.74 N$

So the nearest to 26.74 is 27 N.

Hence C option is correct.

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