Question

A body in equilibrium _______.
A) can move with constant acceleration B) is always at rest C) can move with constant velocity D) can move with variable acceleration

Answer 1

Answer:

when a number of forces acting on a body produce no change in its state of rest of linear or rotational motion, the body is said to be in a state of equilibrium.

Answer 2

A body in equilibrium C) can move with constant velocity

Explanation for the answer:

• A Body is said to be in equilibrium if it experiences neither a linear acceleration nor an angular acceleration.
• So, the net force would be zero.
• Thus, the acceleration will also be zero (a = F/m and F = 0).
• So, the body is in uniform speed.
• Hence, the correct answer among all the options is option C) can move with constant velocity.

Explanation for the incorrect options:

• It is not necessary that the body is equilibrium and has to be at rest only.
• The net force would be zero, so the acceleration will also be zero.

(#SPJ3)