Q&A

Is momentum decreases by 20\%?

Is momentum decreases by 20\%?

The linear momentum of body is decreased by 20 \%.

When the KE of a body is increased by 300?

i.e. Momentum will increase by 100\%.

What can momentum be decreased by?

Momentum of a object is equal to its mass multiplied by its velocity. (Momentum is a vector quantity because velocity is a vector). Decreasing either mass or velocity will decrease momentum.

What will be the kinetic energy of an electron if its velocity is increased by 20\%?

On 20\% increase of p, KE varies as (1.2p)^2 or 1.44p^2. Hence, increase in KE is 44\%.

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What happens to the Ke if its velocity is reduced by ¼TH of the initial velocity?

Now, the velocity is reduced to 1/3rd or the initial velocity. The final kinetic energy is given by. So, K.E. becomes 1/9th of its initial K.E.

What happens to kinetic energy when momentum is decreased by 20\%?

If the momentum of a body is decreased by 20\% its kinetic energy is decreased by 36\%. When KE is still unaltered it is KE = 1/2mv^2. The decreased in its KE is 36\%.

What happens when the linear momentum of a body is increased?

Similar questions If the linear momentum of a body is increased by 50 \%, the Kinetic energy will be increased by   Medium View solution A body of mass 1 kg is thrown up vertically from the ground such that it reaches a height of 40 m. Find its kinetic energy when it is half way up.

What are two ways to decrease momentum?

Decrease velocity and/or decrease mass. Momentum of a object is equal to its mass multiplied by its velocity. (Momentum is a vector quantity because velocity is a vector). Decreasing either mass or velocity will decrease momentum. Some or all of the momentum of an object can be transferred to another object by colliding with it.

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What is the percent change in K E after 20\% increase?

Since the momentum p increases by 20\%, so the final momentum becomes 1.2p. So, \% change in K E = 44\%. Was this answer helpful?

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