if the skater started from rest 4 m above the ground (instead of 7 m ), what would be the kinetic energy at the bottom of the ramp (which is still 1 m above the ground)?

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10-11-2022
Physics

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if the skater started from rest 4 m above the ground (instead of 7 m ), what would be the kinetic energy at the bottom of the ramp (which is still 1 m above the ground)?

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kjuli1766 kjuli1766 · Answer 1 · 2022-11-16T11:16:59-05:00

The kinetic energy at the bottom of the ramp is 2205 J.

The kinetic energy of an object is the electricity that it possesses because of its motion. Tt is defined because the work needed to accelerate a body of a given mass from rest to its stated velocity. Having won this power for the duration of its acceleration, the body maintains this kinetic electricity until its pace adjusts.

Kinetic energy is a form of strength that an object or a particle has by means of the cause of its motion. If work, which transfers electricity, is done on an object by way of applying an internet force, the item quickens and thereby gains kinetic electricity.

Calculation:-

KE = decrease in potential energy

= mg(h2 - h1)

= 75 * 9.81 * ( 4 - 1)

= 2205 J

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