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7.2 Exercise 9

Avg difficulty 2.5

Calculate the kinetic energies of (a) a 2000.0-kg automobile moving at 100.0 km/h; (b) an 80.-kg runner sprinting at 10. m/s; and (c) a 9.1×10−31-kg9.1 \times 10^{−31} -\text{kg} electron moving at 2.0×107m/s.2.0 \times 10^{7} \text{m}/\text{s} .

OpenStax University Physics Volume 1, 7.2 Kinetic Energy, exercise 9

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Adapted from University Physics Volume 1 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 1. Imported at revision db44eb9.