Question

An object is slid down on an inclined plane?
A. Negative
B. Positive
C. Infinite
D. Zero

Answer 1

Hint :To solve this question, first we will observe the angle created when an object is sliding down on an inclined plane then we will check whether the external force applied during the slide is either positive, negative, infinite or zero.

Complete Step By Step Answer:
When an object is sliding down on an inclined plane, then the inclination angle created is acute because external force, $mg$, is applied downward (as an object is sliding down), so work done by gravity will be positive.

For the inclined plane the external load force is only the gravitational force of the heap object on the plane, its weight $Fw$ ,which is a positive force. The info power is the power $Fi$ applied on the article, parallel to the plane, to move it up the plane.
Objects are known to accelerate down inclined planes in light of an uneven power. To comprehend this kind of movement, it is essential to dissect the powers following up on an item on an inclined plane.
Hence, the correct option is (B), Positive.

Note :
When an object moves upward on an inclined plane, it requires less force than lifting it straight up, at a cost of an increase in the distance moved. That means the negative or less external force is applied, angle created is obtuse here.