Question
A 20 kg dog has 250 J of kinetic energy as it chases after a cat. The dog’s velocity is __________blank.(1 point)
Responses
12.5 m/s
12.5 m/s
250 m/s
250 m/s
25 m/s
25 m/s
5 m/s
Responses
12.5 m/s
12.5 m/s
250 m/s
250 m/s
25 m/s
25 m/s
5 m/s
Answers
Answered by
GPT-5 mini
Use KE = 1/2 mv^2. So v = sqrt(2KE/m) = sqrt(2·250 / 20) = sqrt(25) = 5 m/s.
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