Answer:
2.11 seconds
Explanation:
We use the kinematic equation for the velocity in a constantly accelerated motion under the acceleration of gravity (g):
If we know the total energy in a system is 30 J, and we know the PE is 20 J. What is the KE?
1 answer:
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Answer:
Ratio = 1:1
Explanation:
= initial momentum of the system
= final momentum of the system
For the momentum to be conserved , final total momentum must be equal to initial total momentum, so we have
Dividing both side by , we get
hence
Ratio = 1