NEETPhysicsWork, Power and Energy
Assertion : Force applied on a block moving in one dimension is producing a constant power, then the motion should be uniformly accelerated. Reason : This constant power multiplied with time is equal to the change in kinetic energy.
Options
- AIf both Assertion and Reason are correct and Reason is the correct explanation of Assertion
- BIf both Assertion and Reason are true but Reason is not the correct explanation of Assertion
- CIf Assertion is true but Reason is false
- DIf Assertion is false but Reason is true
Correct answer
D. If Assertion is false but Reason is true
Step-by-step solution
(W=P t= 1 2 m v^2 ) (v t^ 1 / 2 ) Differentiating we get, (a t^ -1 / 2 )