Question

If a motorbike of mass 150 kg moving with the speed of 36 km/hr produces acceleration of 5 m/s2in 5 sec, what will be the power developed on it?​

Answer 1

Answer:

Given,

Mass of car, M=2000kg

Velocity, V=72×185=20ms−1

Apply kinematic equation of motion

v2−u2=2as

0−202=2a×20

a=−10ms−2

Breaking force, F=ma=2000×10=20 kN

Apply first kinematic equation

v=u+at

t=av−u=−100−20=2 sec

Breaking force is 20 kNand time is 2sec.

Explanation:

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