Question

70 kg bicyclist on a 10 kg bicycle speeds up from 5.0 m/s to 10m/s . what was total kinetic energy before accelerating? what was total kinectic energy after accelerating?how much work was done to increase kinetic energy of the bicyclist?​

Answer 1

Explanation:

KE = 1/2 mv^2

KE = 1/2 * (308.50 + 10) kg * (10 m/s)^2

KE = 1/2 * 318.50 kg * 100 (m/s)^2