The flywheel has mass m & is rotating with angular velocity w.the radius of the flywheel is R. masses m1 & m2are placed over r1 & r2 radius.find the change in w due to the placing of masses? Posted by Tushar Srivastava (Waiting for your responses before posting the final solution)

# A simple numerical on momentum

Car mass is 1200 kg moving velocity is 108 km/hr. On applying brakes velocity reduced to 36 km/hr. Find change in momentum? (posted by Aditi) Answer: m=1200 kg u=108 x 5/18=30m/s v=36×5/18=10m/s Change in momentum = m(v-u) = 1200 x (30-10)=1200 ...