List of top Physics Questions on work, energy and power asked in COMEDK UGET

A wind mill converts a fixed fraction of the wind energy intercepted by its blades into electrical energy. The electrical power output \( P \) is related to the velocity of wind \( v \) as
A scooter moves with a speed of 7 m/s on a straight road and is stopped by applying the brakes. Before stopping, the scooter travels 10 m. If the weight of the scooter is W, then the total resistance to the motion of the scooter will be
A $2\,kg$ mass lying on a table is displaced in the horizontal direction through $50\,cm$. The work done by the normal reaction will be
In an inelastic collision, which of the following is true?
A pump on the ground floor of a building can pump up water to fill the tank of $30\, m^3$ in $15\,min$. If the tank is $40\,m$ above the ground, and the efficiency of the pump is $30\,%$, the power consumed by the pump is $(g = 10 \, m \, s^{-2})$