tsugumi9010 tsugumi9010

26-05-2020
Physics

contestada

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

Respuesta :

sahadahlawani sahadahlawani

27-05-2020

Answer:

123.61 J

Explanation:

PE = KE

mgh = 1/2 mv2.

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

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