Question

John pushes his brother Danny on a skateboard. John applies a force of 29 N and Danny's acceleration is 0.4 m/s

Answer 1

Answer:

50

Explanation:

Answer 2

Answer:

The combined mass of Danny and his skateboard = m = 72.5 kg

Explanation:

Force applied by john = F = 29N  

Danny’s Acceleration = a = 0.4 m/s  

Combined mass of Danny and his skateboard = m = ?

According to Newton’s second law of motion:

                                   F = ma  

                                  m = F/a  

                                  m = 29/0.4

                                  m = 72.5 kg

Hence, the combined mass of Danny and his skateboard will be 72.5 Kg.