Answer to Question #307323 in Physics for Ravinu

Question

A motor cycle is accelerated from rest to 60m/s in 16 seconds. If the engine force required to achieve this 1200N and effects due to friction are ignored, calculate the mass of the motor cycle.

Answer 1

The acceleration of the motor cycle

$$a=\frac{\Delta v}{\Delta t}=\frac{60}{16}=3.75\:\rm m/s^2$$

The Newton's second law says

$$ma=F$$

Hence, the mass of motor cycle

$$m=\frac{F}{a}=\frac{1200}{3.75}=320\:\rm kg$$