Can you help me out? I\'m getting an answer, but that\'s without incorporating t

Question

Can you help me out? I'm getting an answer, but that's without incorporating the initial velocity valur which I don't know what to do with

0 points) Box on ramp with friction A box of mass 11.8 kg is given an initial speed of v 7.3 m/s along a ramp as indicated in the figure (0 -71.30) If the coefficient of kinetic friction between the box and the ramp is x -0.54, find the magnitude of the acceleration of the box. 4.79 mis 2 Submit Answer rect. Tries 1/99 Previous Tries s to practice problems are not permanently re corded.

Explanation / Answer

net force acting on the block = (mg sin a - umg cos a)

acceleration = F/m

= g(sin a - u cos a )

= 9.8*(sin 71.3 - 0.54*cos 71.3)

= 7.58 m/s2

so the magnitude of acceleration is 7.58 m/s2

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