A vehicle of mass 10 twintles climb up a hill and then moves on a level road with the velocity of 36km/h. Calculate the total mechanical energy while running on the top of the hill.
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Answer:
500
Explanation:
m= 10m
v = 36×5/18 = 10
since the of hill is flat and horizontal , the potential energy (PE) is zero
KE = 1/2 mv^2
KE = 1/2 10 ×10×10 = 500J
ME = KE + PE
ME = 500 + 0
ME = 500J
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