Question

Calculate the kinetic energy, in Joules, possessed in each of the following scenarios and match with the correct answer.

**Not all answers may be used**

(4 points)
Put responses in the correct response input area to answer the question. Select a response, navigate to the desired input area and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
0.5 kg hockey sliding at 2 m/s
Press enter key to drop response here.
75 kg man running at 5.0 m/s.
Press enter key to drop response here.
75 kg man walking at 1.0 m/s.
Press enter key to drop response here.
2000 kg Lamborghini cruising at 30 m/s

Answer 1

Use KE = 1/2 m v^2.

- 0.5 kg hockey sliding at 2 m/s: KE = 0.5(0.5)(2^2) = 1.0 J
- 75 kg man running at 5.0 m/s: KE = 0.5(75)(5^2) = 937.5 J ≈ 9.38×10^2 J
- 75 kg man walking at 1.0 m/s: KE = 0.5(75)(1^2) = 37.5 J
- 2000 kg Lamborghini at 30 m/s: KE = 0.5(2000)(30^2) = 900000 J = 9.00×10^5 J