155_Dynamics 11ed Manual

155_Dynamics 11ed Manual - Engineering Mechanics - Dynamics...

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Engineering Mechanics - Dynamics Chapter 13 Find time a t v d d = k m v = k m 0 t t 1 d v 0 0.5 v 0 v 1 v d = t m k ln v 0 0.5 v 0 = t m k ln 2 () = t 0.693 m k = Find distance av x v d d = k m v = 0 x x k d v 0 0.5 v 0 v m d = x m k 0.5 v 0 = x 0.5 mv 0 k = Problem 13-13 Determine the normal force the crate A of mass M exerts on the smooth cart if the cart is given an acceleration a down the plane. Also, what is the acceleration of the crate? Given: M 10 kg = a 2 m s 2 = θ 30 deg = Solution: NM g M a ( ) sin = ga ( )sin
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