answer this plz ......
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correct answer is d zero because kinetic is zero in upper and potential energy is zero in ground
smruti2002:
u have written
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answer is b
as we know that k = 1/2 mv²
and at highest point
v new = v cos 45°
thus k new = 1/2 m (vcos45)²
k new =( 1/2 m v²) cos² 45°
k new = k/2
as we know that k = 1/2 mv²
and at highest point
v new = v cos 45°
thus k new = 1/2 m (vcos45)²
k new =( 1/2 m v²) cos² 45°
k new = k/2
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