Question

A 50-newton box is placed on an inclined plane that makes a 30° angle with the horizontal. Calculate the component of gravitational force that acts down the inclined plane. A. 25 N B. 37 N C. 43 N D. 56 N

Answer 1

The correct answer is A) 25 N i took the test and got it correct

Answer 2

Weight of the box = 50 Newtons

In the diagram attached,

The gravitational force is broken into two components.

The component of the gravitational force that acts along the inclined plane is 50 SinФ.

Ф = 30°

Sin 30° = 0.5

Gravitational force down the inclined plane = 50 Sin 30°

= 50 × 0.5

Gravitational force down the inclined plane = 25 Newtons or 25 N

Hence, the option A is correct.