Questions
Which of the following statement(s) is/are correct?
I. If momentum of a body increases by 50%, its kinetic energy will increase by 125%.
II. Kinetic energy is proportional to square of velocity.
detailed solution
Correct option is C
As momentum of a body increases by 50% of its initial momentum, p2=p1+5q% of p1=32p1∴ v2=32v1 As K∝v2, so K2=94K1Increase in KE =K2-K1K1×100=94K1-K1K1×100=125%Talk to our academic expert!
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A light body A and a heavy body B have equal linear momentum. Then the KE of the body A is
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