# What is the work done by the force of friction on a body sliding on a rough horizontal surface?

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## What is the work done by the force of friction on a body sliding on a rough horizontal surface?

If the force and displacement are in the same direction, the work done is positive. If force and displacement are perpendicular to each other, the work done is zero.

## Does work equal change in kinetic energy?

The work-energy theorem states that the net work done by the forces on an object equals the change in its kinetic energy.

## Which of the following would produce the greatest increase in the kinetic energy of a moving object?

Expert-Verified Answer Hence we can conclude that the factors that will cause the greatest increase in kinetic energy is the doubling of the mass and velocity of the object .

## What is the energy due to motion?

Kinetic energy is the energy an object has because of its motion.

## What is the work done by friction on a body sliding down on a rough inclined plane?

Since the frictional force acting on a body sliding down acts in direction opposite to the direction of displacement of block, the work done is negative.

## What is the formula for the work done by friction?

The work done by friction is exactly the opposite Wfriction=−2Fd, since Ffriction=−F. ΔK=Wtot=W+Wfriction.

## What is the formula of work-energy?

Work Energy and Power FAQs Work (W) can be calculated mathematically using the formula: W = Fdcos(), where F denotes force, d denotes displacement, and denotes the angle between the force and displacement vectors.

## What is the formula for kinetic energy work?

The work W done by the net force on a particle equals the change in the particle’s kinetic energy KE: W=ΔKE=12mv2f−12mv2i. The work-energy theorem can be derived from Newton’s second law. Work transfers energy from one place to another or one form to another.

## What is the formula for net work?

Net work is defined to be the sum of work done by all external forces—that is, net work is the work done by the net external force Fnet. In equation form, this is Wnet=Fnetdcosθ where θ is the angle between the force vector and the displacement vector.

## What is the law of kinetic energy?

Considering these concepts, calculating kinetic energy (Ek) is done with the following mathematical formula: Ek = (½)m * v2; this means that the kinetic energy is proportional to half the mass of the body multiplied by the square of the velocity of movement.

## Which object has kinetic energy 1 point?

Any object in motion has the property of kinetic energy. Simply put, kinetic energy is motion energy.

## What is the relationship between power and kinetic energy?

Power = Energy / Time. So, both Kinetic and Potential contribute to power. Another expression for power= force x velocity, as energy and workd are basically sane, and work =force x displacement.

## What is the work done by sliding friction?

The work done by friction is the force of friction times the distance traveled times the cosine of the angle between the friction force and displacement; hence, this gives us a way of finding the distance traveled after the person stops pushing.

## What is the work done by friction force when pushing a block on a hard surface?

For example, if we try to push a very heavy block on a rough floor, the block does not move. This is because the force of static friction opposes our force. However, since the block does not move, the displacement is zero. Therefore, zero work is done by friction.

## What is the work done by the force of friction in moving a body around a closed loop?

a) Work done by a moving body over a closed loop is zero for all forces in nature.

## What is the work done by the body against friction?

A body does work against friction at the expenses of its kinetic energy. Hence, the work done by a body against friction always results in loss of kinetic energy.