Question

In which of the following ways the accelerated motion of a body will occur under an external force?

(a) Due to change in direction

(b) Due to the inability to change its direction

(c) Due to the inability to change its speed

(d) Due to its ability to remain at rest

The question was posed to me by my college director while I was bunking the class.

The above asked question is from Gravity topic in division Laws of Motion of Engineering Physics I

Answer 1

Correct answer is (a) Due to change in direction

Easiest explanation: When the force acts perpendicular to the direction of motion, it produces circular motion. Thus accelerated motion is always due to external force and it can occur due to change in the direction.