Physics, asked by krish557896, 16 days ago

How much work is required to be done to stop an object of 150 Kg moving with a velocity of 72 km/hr?​

Answers

Answered by sumanahegde51
0

Answer:

Answer:30000J

Explanation:

Explanation:In work and energy when ever a body is moving it states that it has kinetic energy

use the formula for kinetic energy 1/2mv^2

m=mass

v=velocity squared

in this case the objects stops so v=0m/s and u=20m/s

by using the formula

kinetic energy final - kinetic energy initial we get

30000J to stop the car

hear I have particularly mentioned the magnitude of the magnitude because work done is a scalar quantity

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