Question

Assertion: For motion in two or three diemensions, velocity and acceleration vecotrs must have any angle between `0^(@) and 90^(@)` between them.
Reason: For such motion velocity and acceleration of an object is always in the opposite direction.

Answer 1

Correct Answer - D
In one dimension, the velocity and the acceleration of an object are always along the same straight line either in the same direction or in the opposite direction. However, for motion in two or three dimensions velocity and acceleration vectors may have any angle from `0^(@)` to `180^(@)` between tehm.