Question

Help please:A boy weighing 30 kg rides a scooter. The total kinetic energy of the boy and the scooter is 437.6 J. Determine the speed at which the boy moves if the mass of the scooter is 5kg?​

Answer 1

5 m/s

Step-by-step explanation:

Mass of the boy + scooter system = 35 kg

Kinetic Energy = 437.6 J

437.6 =
`(1)/(2) 35 {v}^2`

25.0057143 =
`v^(2)`

v = 5 m/s