Work and Energy:
(i) Work done by a force is the product of the force and the displacement in the direction of the force.
(ii) Work has both magnitude and direction.
(iii) An object possessing energy can exert a force on another object.
(iv) The unit of energy is the same as that of work, which is joule (J).
The correct statements are:
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Assertion (A): Work is not done when a force is applied to an object, but there is no displacement of the object.
Reason (R): According to the scientific definition of work, work is defined as force multiplied by displacement. If there is no displacement, no work is done.
Assertion (A): An object thrown at a certain angle to the ground moves in a curved path and falls back to the ground. The initial and the final points of the path of the object lie on the same horizontal line.
Reason (R): The work done by the force of gravity on the object in this scenario is zero.
If 1 newton of force displaces a body by 1 m, the work done is
A force of 10 N displaces a body by 6 m in 3 seconds. The power of the agency applying the force is
What is the term used in science to define work as the product of force and displacement?
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3 videos|643 docs|530 tests
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