Question

A 50 kg student holding a 7 kg backpack rides a 4 kg skateboard down the sidewalk at 3 m/s. What is the total momentum of the student, backpack, and skateboard in units of kg*m/s?.

Answer 1

Below

Step-by-step explanation:

Total mass = ( 50 + 7 + 4) = 61 kg

momentum = m * v

= 61 kg * 3 m/s = 183 kg m/s