Work done by a force in the direction of displacement can be defined as the product of

The correct answer is Force and Displacement.

Key Points

• Work is defined as the product of the magnitude of the displacement and the component of the force in the direction of the displacement.
• If the force and displacement are in the same direction, the work done is positive.
• If the force and displacement are in opposite directions, the work done is negative.
• Work is a scalar quantity and its SI unit is the joule (J).

Important Points

• Momentum: It is the product of an object's mass and its velocity. It is a vector quantity and its SI unit is kg·m/s.
• Weight: It is the force exerted by gravity on an object. It is a vector quantity and its SI unit is the newton (N).
• Mass: It is a measure of the amount of matter in an object. It is a scalar quantity and its SI unit is the kilogram (kg).