please solve this guy's... urgent
I have half solved it, but don't understand how to solve further..
answer will be 750J
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Answered by
1
Answer:
750 J
Explanation:
Using Conservation of Mechanical Energy
Let KInetic Energy at half way be x
So, Total Energy = K.E. at halfway + P.E. at halfway
1500=x+ 50×10×1.5 (Middle height = 3/2 =1.5)
x=1500-750
x=750 Joules
Kinetic Energy at middle point is 750 Joules
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Answered by
1
Answer:
after Half Fall, 1/2 of original PE is Now its KE
1/2 of 1.5 KJ = 1/2 m v ^2
so v^2 = 1500/ 50 = 30
v = Root 30 m per sec. at 1.5 meter during Fall.
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