Question

A motorcycle of weight 2000N accelerates from 0 to 25m/s in 6 seconds. What are the magnitudes of
a. acceleration?
b. mass of motorcycle
c. Net force causing the acceleration? (Hint: mass=weight/acceleration due to gravity(g)

Answer 1

solution

a) initial velocity, u= 0m/S

finl velocity, v= 25/s

acceleration= change in velocity/ time taken

or, v - u/ t

= 25 - 0/ 6= 25/6 = 4.1m/s^2

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b) mass= weight/ gravitation force

= 2000/10= 200kg

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c) f= ma

= 200* 4.1

= 820 N

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