Answer:
![\huge\boxed{\sf P.E = 130\ Joules}](https://tex.z-dn.net/?f=%5Chuge%5Cboxed%7B%5Csf%20P.E%20%3D%20130%5C%20Joules%7D)
![\huge\boxed{\sf P = 32.5\ Watts}](https://tex.z-dn.net/?f=%5Chuge%5Cboxed%7B%5Csf%20P%20%3D%2032.5%5C%20Watts%7D)
Explanation:
<u>Given Data:</u>
Weight = W = 65 N
Height = h = 2 m
Time = t = 4 secs
<u>Required:</u>
Power = P = ?
Work Done in the form of Potential Energy = P.E. = ?
<u>Formula:</u>
P.E. = Wh
P = P.E. / t
<u>Solution:</u>
P.E. = (65)(2)
P.E = 130 Joules
P = P.E. / t
P = 130 / 4
P = 32.5 Watts
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Hope this helped!
<h3>~AH1807 </h3>
If net external force acting on the system is zero, momentum is conserved. That means, initial and final momentum are same → total momentum of the system is zero.
It could be A :) not sure tho
Answer:
power
Explanation:
it helps to do work without power we cant do any things
Answer:
Explanation:
Check attachment for solution