Work, Energy and Power PYQs - Last 10 Years
NEET / Physics / Mechanics / 17 recent questions
PhysicsMechanics2017-2026
Practice 17 NEET Physics questions from Work, Energy and Power. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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2017-2026
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2017-2026
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12 in last 5 years17 in last 10 years
Last 10 Years Work, Energy and Power Questions
Showing 17 of 17 filtered questions.
1Work Energy And Power
A particle of mass $M$ moves along a horizontal $x$ axis from $x=0$ to $x=L$. The coefficient of kinetic friction varies as a function of $x$ as $\mu_k(x)=\mu_0-\alpha x$, where $\mu_0$, $\alpha$ are constants of appropriate dimensions, so ...
MCQ+4 / -12026
2Work Energy And Power
The power of a crane, which lifts a mass of 1000 kg to a height of 20 m in 10 s is: $\left(g=9.8 \mathrm{~m} / \mathrm{s}^2\right)$
MCQ+4 / -12026
3Work Energy And Power
A bob of heavy mass $m$ is suspended by a light string of length $/$. The bob is given a horizontal velocity $v_0$ as shown in figure. If the string gets slack at some point $P$ making an angle $\theta$ from the horizontal, the ratio of the...
MCQ+4 / -12025
4Work Energy And Power
The kinetic energies of two similar cars $A$ and $B$ are 100 J and 225 J respectively. On applying breaks, car $A$ stops after 1000 m and car $B$ stops after 1500 m . If $F_A$ and $F_B$ are the forces applied by the breaks on cars $A$ and $...
MCQ+4 / -12025
5Work Energy And Power
An object falls from a height of \(10 \mathrm{~m}\) above the ground. After striking the ground it loses \(50 \%\) of its kinetic energy. The height upto which the object can rebounce from the ground is:
MCQ+4 / -12024
6Work Energy And Power
An object moving along horizontal \(x\)-direction with kinetic energy \(10 \mathrm{~J}\) is displaced through \(x=(3 \hat{i}) \mathrm{m}\) by the force \(\vec{F}=(-2 \hat{i}+3 \hat{j}) \mathrm{N}\). The kinetic energy of the object at the e...
MCQ+4 / -12024
7Work Energy And Power
At any instant of time \(t\), the displacement of any particle is given by \(2 t-1\) (\(\mathrm{SI}\) unit) under the influence of force of \(5 \mathrm{~N}\). The value of instantaneous power is (in \(\mathrm{SI}\) unit):
MCQ+4 / -12024
8Work Energy And Power
A particle moves with a velocity \((5 \hat{i}-3 \hat{j}+6 \hat{k}) ~\mathrm{ms}^{-1}\) horizontally under the action of constant force \((10 \hat{\mathrm{i}}+10 \hat{\mathrm{j}}+20 \hat{\mathrm{k}}) \mathrm{N}\). The instantaneous power sup...
MCQ+4 / -12023
9Work Energy And Power
The potential energy of a long spring when stretched by \(2 \mathrm{~cm}\) is U. If the spring is stretched by \(8 \mathrm{~cm}\), potential energy stored in it will be :
MCQ+4 / -12023
10Work Energy And Power
The restoring force of a spring with a block attached to the free end of the spring is represented by
MCQ+4 / -12022
11Work Energy And Power
The energy that will be ideally radiated by a 100 kW transmitter in 1 hour is
MCQ+4 / -12022
12Work Energy And Power
An electric lift with a maximum load of 2000 kg (lift + passengers) is moving up with a constant speed of 1.5 ms\(-\)1. The frictional force opposing the motion is 3000 N. The minimum power delivered by the motor to the lift in watts is : (...
MCQ+4 / -12022
13Work Energy And Power
Water falls from a height of 60m 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/s2)
MCQ+4 / -12021
14Work Energy And Power
A particle is released from height S from the surface of the Earth. At a certain height its kinetic energy is three times its potential energy. The height from the surface of earth and the speed of the particle at that instant are respectiv...
MCQ+4 / -12021
15Work Energy And Power
A force F = 20 + 10y acts on a particle in y-direction where F is in newton and y in meter. Work done by this force to move the particle from y = 0 to y = 1 m is :
MCQ+4 / -12019
16Work Energy And Power
A body initially at rest
and sliding along a
frictionless track from
a height h (as shown
in the figure)
just completes a vertical circle of diameter
AB = D. The height h is equal to
and sliding along a
frictionless track from
a height h (as shown
in the figure)
just completes a vertical circle of diameter
AB = D. The height h is equal to
MCQ+4 / -12018
17Work Energy And Power
Consider a drop of rain water having mass 1 g falling from a height of 1 km. It hits the ground with a speed of 50 m s\(-\)1. Take 'g' constant with a value 10 m s\(-\)2. The work done by the (i) gravitational force and the (ii) resistive ...
MCQ+4 / -12017