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Posted by Jenn on Monday, October 5, 2009 at 8:50pm.

292 kg motorcycle is accelerating up a ramp that is 30 degrees above the horizontal. Propulsion force pushing the motorcycle up ramp is 3150 N. Air resistance produces a force of 250 N that opposes the motion. Find that motorcycle's acceleration.

Resolve all forces in the direction of the ramp, up=positive. Propulsion force, P= +3150N Resistance, A = -250N due to weight of motocycle, W = -mgsinθ Net force, F = P+A+W Use F=ma to solve for a.

14.84 m/s^2

5.03 m/s^2

50

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