A body of mass 1 kg is thrown at an angle 30 to the horizontal with a initial speed 50 m/sec.
The mean power developed by gravity over the whole time of motion of body is ?
(A) -250J
(B)
-250/3J
zero
(C)
(D)
250 J
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Answer:
if an object placed on a horizontal surface is pushed or pulled by force F as ... of X = 24m from C to D as shown via force F = 45N that makes angle θ = 30.0o with ... ΣF(50m) = 1/2(900)(25)2 - 1/2(900)(15)2 ; ΣF= 3600N.
Explanation:
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