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
In the arrangement shown in the figure all surfaces are frictionless, pulley and string are light. The masses of the blo...A small sphere is suspended by a string from the ceiling of a car. If the car begins to move with a constant acceleratio...Two forces of 6N and 3N are acting on the two blocks of 2kg and 1kg kept on frictionless floor. What is the force exerte...If a body is placed on a inclined place, the nature of force acting on the body is (are)...A block is dragged on smooth plane with the help of a rope which moves with velocity v. The horizontal velocity of the b...