Answer to Question #348516 in Physics for Yannis

Question

A person does 360J of work in 3.2s to accelerate a bike at 13m/s^2. This changed the velocity by 31m/s. How heavy is the bike. The bike moved 26m

Answer 1

$$W=Fd$$

$$F=\frac{W}{d}=\frac{360}{26}=13.8\:\rm N$$

$$F=ma$$

$$m=\frac{F}{a}=\frac{13.8}{13}=1.1\:\rm kg$$