Question

A motorcycle of
mass 100
kg
is
moving with velocity 20 km/hr.
How much work will be done to
increase its velocity
up to 40 km/hr?​

Answer 1

Answer:

277.8J

Explanation:

from work energy theorem work done is equal to change in kinetic energy

initial velocity(u)=20×5/18 m/s

final velocity=40×5/18m/s

work done(w)=1/2×100×5/18(40-20)

w=277.8J