A person having a mass of 60 kilograms exerts a horizontal force of 200 Newtons in pushing a 90 kilogram object a distance of 6 meters along a horizontal floor. He does this at constant velocity in 3 seconds. The weight of this person approximately, in Newtons, is: (g=9.8m/s2)
Correct answer: E. 600 N
- A. 40 N
- B. 90 N
- C. 200 N
- D. 400 N
- E. 600 N
Explanation
Solution: As the weight is W=mg taking g= 10ms-2 According to the question mass of person is 60 kg hence the weight of person is 60x10 =600 newton
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