Teaching EMRS PGT Mock Test 2023 Physics Motion in Two and Three Dimensions Circular motion

An athlete is running on a circular track of radius of R with constant speed v. Then after completing 3/4th cycle:

1
change in kinetic energy is \(\frac{1}{2}\) mvr
2
change in momentum is mvr
3
change in kinetic energy is zero
4
Change in kinetic energy is mv2
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