Question

What is the kinetic energy of a 10-kg bicycle moving at 10 m/s?

O A. 100 kg-m/s
B. 1 J
C. 500 J
O D. 100 J
SUB​

Answer 1

Kinetic energy = (1/2) (m) (v^2)

The question tells us (m) and (v) .

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

KE = (5 kg) (100 m^2/s^2)

KE = 500 N-m

KE = 500 Joules

Answer 2

C. 500 J

Explanation:The equation of Kinetic energy is KE = (mv^2)/2 therefore here m, which is mass, is 10 and v, which is velocity, is 10 as well. So KE = (10x10^2)/2 = 1000/2 = 500. And there we get the answer as 500 hence the answer is C. 500J

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