Since the change in momentum of the water jet is constant, force exerted by the water jet= force on the wall= change in momentum of the water jet in one second= 2m(Δv)=2×(6×10-4×12×1000)×(12.cos60°)=86.4 N.
- Anurag Ghosh thanks..Upvote·0· Reply ·2014-01-29 17:33:59