Laws of MotionHard
Question
A jet water, whose cross section is ′a′ strikes a wall making an angle ′θ′ with normal and elastically rebounds. The velocity of water of density ′d′ is v. Force exerted on wall is :-
Options
A.2 av2 d cos θ
B.2 av2 d sin θ
C.2 av d cos θ
D.av d cos θ
More Laws of Motion Questions
One end of a massless rope, which passes over a massless and frictionless pulley P is tied to a hook C while the other e...When a carpet is beaten with a stick, the particles do not move. Whereas the fibres comes in motion. The particles demon...A uniform rope of length L and mass M is placed on a smooth fixed wedge as shown. Both ends of rope are at same horizont...for show situation letN1= Normal reaction between A&B N2= Normal reaction between B&Cwhich of the following statement (s...The pulleys and strings shown in the fig. are smooth and of negligible mass. For the system to remain in equilibrium, th...