C4T10 10. A powerful motorcycle can produce an acceleration of 3.50 m/s2 while t

ID: 2136319 • Letter: C

Question

C4T10

10. A powerful motorcycle can produce an acceleration of 3.50 m/s2

while traveling at 90.0 km/h. At that speed the forces resisting motion,

including friction and air resistance, total 400 N. (Air resistance is

analogous to air friction. It always opposes the motion of an object.) What

force does the motorcycle exert backward on the ground to produce its

acceleration if the mass of the motorcycle with rider is 245 kg?

Please show me your work....thats what I'm mostly interested in....thanks

a = 3.50

u = 90*5/18 = 25 m/s

Fresistance = -400N

m*a = F - 400

F = 400+m*a = 400+245*3.5 = 1257.5 N

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