A cyclist and bicycle together have mass and move with speed

PHYSICS · Subjective · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

A cyclist and bicycle together have mass

m

and move with speed

v

, possessing kinetic energy

E

. After shedding

20\%

of the total mass and then increasing speed by

30\%

, determine the percentage change in kinetic energy compared with

E