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Question

While an athlete is running at a constant acceleration of 4.5 m/s2, he exerts a force of 300 N. What is the mass of the athlete?


  1. 69.6 kg

  2. 65 kg

  3. 64 kg

  4. 66.67 kg


Solution

The correct option is D

66.67 kg


Given, Force applied by the athlete = 300 N

Constant acceleration =4.5 m/s2 

Force = mass x acceleration [Newton's Second Law of Motion]

300=4.5×m

m=66.67 kg

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