Which of the following is correct about work?
Work has only magnitude
Work has only direction
Work has both magnitude and direction
Work may or may not have both magnitude and direction depending on type of work
Work is expressed as the scalar product of force and displacement vectors. Hence work has only magnitude and no direction.
Which of the following is correct about work for an object of mass ′m′ displaced vertically by a distance of ′h′?
Assertion: The accelerated motion of an object may be due to change in magnitude of velocity or direction of velocity or both.
Reason: Acceleration can be produced only by change in the magnitude of the velocity.