Calculate the kinetic energy in Joules possessed by each of the following objects. Remember to use the correct number of significant figures in your answer.
a) A 500 g wooden block moving at 2 m/s.
b) A 71 kg man walking at 1.0 m/s.
c) A 1816 kg car (2 tons) traveling at 26.8 m/s.
Answers
Answered by
14
a) k = 1/2mv^2
= 1/2*500*2*2
= 1000J
b) k = 1/2*71000g*1*1
= 35000J
= 1/2*500*2*2
= 1000J
b) k = 1/2*71000g*1*1
= 35000J
Answered by
17
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