The kinetic energy of a particle increases by while its mass simultaneously decreases…

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

The kinetic energy of a particle increases by

300\%

while its mass simultaneously decreases to one-fourth of its original value. By what factor has its speed changed? (a)

8

(b)

4

(c)

2

(d)

16