A 2.80 kg mass is dropped from a height of 4.50 m. Find its kinetic energy (KE) when it reaches the ground. Unit = J

asked Aug 12, 2021 121k views

3 votes

A 2.80 kg mass is dropped from a height of 4.50 m. Find its kinetic energy (KE) when it reaches the ground.

Unit = J

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6 votes

Answer:

123.61 J

Step-by-step explanation:

PE = KE

mgh = 1/2 mv2.

(2.80)(9.81)(4.50)=123.606J

James Beith answered Aug 18, 2021

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