netic-energy-which-variable-is-unknown-and-how-is-the-equation-set-up-to-find-it

Question

A toy car has a mass (m) of 2 kg and a kinetic energy (K) of 18 J. Using the kinetic energy formula K = 1/2 mv², find v, and round your answer to 1 decimal place. Note: v \u003e 0.

Accepted Answer

4.2 m/s

Answer

3.0 m/s

Answer

6.0 m/s

Answer

9.2 m/s

A toy car has a mass (m) of 2 kg and a kinetic energy (K) of 18 J. Using the kinetic energy formula K = 1/2 mv², find v, and round your answer to 1 decimal place. Note: v > 0.