JEE MainPhysicsWork Power and EnergyMCQ+4 / −1
A particle experiences a variable force in a horizontal x-y plane. Assume distance in meters and force is newton. If the particle moves from point (1, 2) to point (2, 3) in the x-y plane, then Kinetic Energy changes by :
- A50.0 J
- B12.5 J
- C25.0 J
- D0 J
More from Work Power and Energy
- A ball of mass 100 g is dropped from a height h = 10 cm on a platform fixed at the top of a vertical spring (as shown in figure). The ball stays on the platform and the platform is depressed by a distance . The spring constant… Includes diagram2022 · Numerical
- A body of mass travels on straight line path with velocity . The net workdone by the force during its displacement from to is :2022 · MCQ
- A bag of sand of mass 9.8 kg is suspended by a rope. A bullet of 200 g travelling with speed 10 ms 1 gets embedded in it, then loss of kinetic energy will be :2022 · MCQ
- A uniform chain of 6 m length is placed on a table such that a part of its length is hanging over the edge of the table. The system is at rest. The co-efficient of static friction between the chain and the surface of the table is 0.5, the…2022 · Numerical
- A 0.5 kg block moving at a speed of 12 ms 1 compresses a spring through a distance 30 cm when its speed is halved. The spring constant of the spring will be Nm 1.2022 · Numerical
- As per the given figure, two blocks each of mass are connected to a spring of spring constant . If both are given velocity in opposite directions, then maximum elongation of the spring is : Includes diagram2022 · MCQ
- Arrange the four graphs in descending order of total work done; where W1, W2, W3 and W4 are the work done corresponding to figure a, b, c and d respectively. Includes diagram2022 · MCQ
- Sand is being dropped from a stationary dropper at a rate of on a conveyor belt moving with a velocity of . The power needed to keep the belt moving with the same velocity will be :2022 · MCQ