Work, Energy and Power questions
712 published questions with worked solutions.
- A ball moves on a frictionless inclined table without slipping. The work done by the table surface on the ball is [DUMET 2009]
- The energy required to accelerate a car from 10 m/s to 20 m/s is how many times the energy required to accelerate the car from...
- A body of mass 2 kg slides down a curved track which is a quadrant of a circle of radius 1 metre. All the surfaces are...
- The potential energy of a system increases if work is done [CBSE PMT (Prelims) 2011]
- A particle of mass 0.2 kg is moving in one dimension under a force that delivers a constant power 0.5 W to the particle. If the...
- A bob of mass m, suspended by a string of length l₁, is given a minimum velocity required to complete a full circle in the...
- A particle of mass 0.2 kg is moving in one dimension under a force that delivers a constant power 0.5 W to the particle. If the...
- A bob of mass m, suspended by a string of length l₁, is given a minimum velocity required to complete a full circle in the...
- The work done on a particle of mass m by a force, K[x/(x²+y²)^(3/2) î + y/(x²+y²)^(3/2) ĵ] (K being a constant of appropriate...
- A time dependent force F = 8t acts on an object of mass 2 kg. If the object starts from rest, the work done by the force during...
- A person trying to lose weight by burning fat lifts a mass of 15 kg up to a height of 2 m, 500 times. Assume that the potential...
- A particle moves with a velocity of (4î−2ĵ+2k̂) m/s under the influence of a constant force F = (10î+3ĵ−2k̂) N. The instantaneous...
- A body of mass 12 kg moves down the quadrant of a circle of radius 6 m. The velocity on reaching the lowest point is 6 m/s. What...
- The mass of a pendulum bob is 200 gram and the string is 2 metre long. The bob is held so that the string is horizontal, and it...
- Rain drops fall from a certain height with a terminal velocity v on the ground. The viscous force, F = 6πηrv, where η is the...
- A body of 2 kg mass is initially moving along a straight line with a velocity of 1.5 m/s. A force of 4 N is applied to it at an...
- An ice cube of size a = 5 cm is floating in a tank (base area A = 25 cm × 25 cm) partially filled with water. The change in...
- An electric pump on the ground floor of a building takes 15 minutes to fill a tank of volume 25 m³ with water. If the tank is 80...
- A particle of mass 2×10⁻² kg is moving along the positive X-axis under the influence of a force F(x) = −k/(4x²), where k = 10⁻²...
- A stone is tied to a string of length 8 m and is whirled in a vertical circle with the other end of the string as the center. At...
Other chapters
Alcohols, Phenols and EthersAldehydes, Ketones and Carboxylic AcidsAlternating CurrentAminesAnatomy of Flowering PlantsAncient Indian HistoryAnimal KingdomApplication of DerivativesArea Under CurveAromatic Compounds and Aryl HalidesAtomsBasic Mathematics and LogarithmBinomial TheoremBiodiversity and ConservationBiological ClassificationBiomoleculesBiotechnology and Its ApplicationsBiotechnology: Principles and ProcessesBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionCell: The Unit of LifeChemical Bonding and Molecular StructureChemical Coordination and Integration