Question

Choose the correct statement(s).

• A. Unbalanced forces can change the direction of motion.
• B. Balanced forces are required to accelerate the motion.
• C. An object moves with a uniform velocity when there is no net force acting on it.
• D. Balanced forces cannot bring an object at rest to motion.

Answer 1

Answer: (A), (C), (D)

The correct options are
A Unbalanced forces can change the direction of motion.
C An object moves with a uniform velocity when there is no net force acting on it.
D Balanced forces cannot bring an object at rest to motion.

Balanced forces acting on an object cannot cause any change in the state of the object. If the object is in motion, it will continue in its state of motion, or if the object is at rest, it will remain at rest because in the case of balanced forces, the net force acting is zero.
In order to change the state of rest or uniform motion of an object, unbalanced forces should be applied so that net force is not zero.