blackberri9337 blackberri9337
  • 02-01-2020
  • Physics
contestada

How will W change if the initial speed of the box at Point A is increased by a factor of 2?

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asifejaz20
asifejaz20 asifejaz20
  • 06-01-2020

Answer:

“W” will increase four time.

Explanation:

As work done (W) and Kinetic energy (KE) have same units. So, we will deal “W” in terms of “KE”.

                                                       KE = ½ mv^2   ……. (i)

Equation (i) shows that KE is directly proportional to the square of speed. So, if speed is increased two time then “W” will increase four time.

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