A crate is pushed horizontally with 100 N force across a 5 m... — Physics | Mockzy

EasyPhysicsenergy

+4 / -1

A crate is pushed horizontally with 100 N force across a 5 m floor. If the frictional force between the crate and the floor is 40 N, then the kinetic energy gained by the crate is:

200 J

240 J

250 J

300 J

In a conservative field, the potential energy U as a function of position x is g

When a force retards the motion of body, the work done is:

More from energy

Hard

A drop of liquid of diameter 2.8 mm breaks up into 126 identical drops. The increase in energy is ne

Easy

If the kinetic energy of a moving body is increased to 16 times of its original value, then the line

Easy

Most appropriate graph between kinetic energy E and velocity V is:

Medium

A block of mass 5 kg slides down from rest on a rough surface having 30° inclination with horizontal

Medium

Two bodies of masses m₁ and m₂ have equal kinetic energies. If p₁ and p₂ are their respective moment

Easy

If a body of mass 2 kg is moving with constant velocity of 2 m/s, then the kinetic energy of the bod

Practice Physics Exams

Full-length mock tests with detailed analytics, rank, and percentile.

Browse Exams