At any instant of time \(t\), the displacement of any particle is given by \(2t-1\) (SI unit) under the influence of force of 5N. The value of instantaneous power is (in SI unit):
Power
Every question from past board papers on Power, newest paper first. Open any question for its full worked answer.
NEET UG 2024 question paper (official, booklet S6)
Full paper →NEET UG 2022 question paper (official, booklet R6)
Full paper →-
An electric lift with a maximum load of 2000 kg (lift + passengers) is moving up with a constant speed of 1.5 \(\text{ms}^{-1}\). The frictional force opposing the motion is 3000 N. The minimum power delivered by the motor to the lift in watts is : (g = 10 \(\text{ms}^{-2}\))
NEET UG 2021 question paper (official, booklet M4)
Full paper →-
Water falls from a height of 60 m at the rate of 15 kg/s to operate a turbine. The losses due to frictional force are 10% of the input energy. How much power is generated by the turbine ? (g = 10 m/s\(^2\))