Work Energy Theorem Application
Trending Questions

- h- h/tanα
- h/μ - h/tanα
- h/μ – h
- h/μ - 1/tanα
Consider the following two statements
1.Linear momentum of a system of particles is zero
2.Kinetic energy of a system of particles is zero
Then
implies 2 and 2 implies 1
1 does not imply 2 and 2 does not imply 1
1 does not imply 2 but 2 implies 1
1 implies 2 but 2 does not imply 1

- mgL(sinθ)
- mgL(1-cosθ)
- mgL(1-sinθ)
- mgL(tanθ)
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The only force acting on a 2.0 kg body as it moves along the x - axis varies as shown in the figure. The velocity of the body at x = 0 is 4.0 ms What is the maximum K.E attained by the body between x=0 and x=5 m?
18 J
20 J
16 J
12 J
The work done in pulling up a block of wood weighing 2 kN for a length of 10m on a smooth plane inclined at an angle of 15∘ with the horizontal is
4.36 kJ
5.17 kJ
8.91 kJ
9.82 kJ
The same retarding force is applied to stop a train. The train stops after 80 m. If the speed is doubled, then the distance will be
Doubled
The same
Halved
Four times
An open knife edge of mass m is dropped from a height h on a wooden
floor. If the blade penetrates upto the depth d into the wood, the average resistance offered by the wood to the knife edge is