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11 Dec 2019
a. If a particle's speed increases by a factor of three, by what factor does its kinetic energy change?
b. Particle A has half the mass and eight times the kinetic energy of particle B. what is the speed ratio ?
c. If a rotating skater triples her rate of rotation by decreasing her moment of inertia by 1/3, by what factor does her rotational kinetic energy change?
a. If a particle's speed increases by a factor of three, by what factor does its kinetic energy change?
b. Particle A has half the mass and eight times the kinetic energy of particle B. what is the speed ratio ?
c. If a rotating skater triples her rate of rotation by decreasing her moment of inertia by 1/3, by what factor does her rotational kinetic energy change?
Deepak Kumar Lv7
30 Sep 2020
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