The speed of a puck on frictionless ice increases from to while its mass remains constant

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

Problem

The speed of a puck on frictionless ice increases from

10\,\text{m/s}

30\,\text{m/s}

while its mass remains constant. By approximately what percent does its translational kinetic energy increase? (a)

200\%

(b)

900\%

(c)

800\%

(d)

300\%