A mass of `5kg` is moving along a circular path or radius `1m`. If the mass moves with 300 revolutions per minute, its kinetic energy would beA. `250 p^(2)`B. `100 p^(2)`C. `5 p^(2)`D. 0

A mass of `5kg` is moving along a circular path or radius `1m`. If the

1.	A mass of `5kg` is moving along a circular path or radius `1m`. If the mass moves with 300 revolutions per minute, its kinetic energy would beA. `250 p^(2)`B. `100 p^(2)`C. `5 p^(2)`D. 0
Answer» Correct Answer - A Given, mass `= m = 5kg` Radius `= 1 m = R` Revolution per minute `omega =300 rev//min` =`(300 xx 2pi)rad//min` =`(300 xx 2xx3.14) rad//60s` =`(300 xx 2 xx 3.14)/(60) rad//s = 10 pi rad//s` `rArr "Linear speed" = v = omega R` `=((300 xx 2 pi)/(60)) (1)` `=10 pi m//s` `KE = (1)/(2) mv^(2)` `=(1)/(2) xx 5 xx(10 pi)^(2)` `=100 pi^(2) xx 5 xx (1)/(2)` =`250 pi^(2) J`.

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A mass of `5kg` is moving along a circular path or radius `1m`. If the mass moves with 300 revolutions per minute, its kinetic energy would beA. `250 p^(2)`B. `100 p^(2)`C. `5 p^(2)`D. 0

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