NEET2015Physics-Work, Energy and Power
NEET 2015 Physics Power MCQ Question
Type: MCQ-numerical-Hard-Class 11
A particle of mass m is driven by a machine that delivers a constant power K watts. If the particle starts from rest the force on the particle at time t is
A
mK/√2t
B
√mK/t²
C
2mK/t²
D
½√mK/t²
Correct Answer
Option D
Detailed Explanation
Using the relation between power, force, and velocity, and integrating with respect to time, the force can be derived.
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