Question

A sports car accelerates from 0 to 60mph ,27 m/s ,in 6.3 secounds .The car exerts a force of 4106N . What is the mass of the car

Answer 1

The car accelerates 60 mph in 6.3 seconds. Thus, the acceleration is $\frac{60}{6.3}$. $f=ma$, so $4106 = m(\frac{60}{6.3})$, so $m=431.13$.