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5 Dec 2020

A boy of mass 40 kg is climbing a vertical pole at a constant speed. If the coefficient of friction his palm and the pole is 0.8 and g = 10 m/sec2, the horizontal force that he is applying on the pole is

A) 300 N

B) 400 N

C) 500 N

D) 600 N

Booster class
Mechanics 1
Skill
Understanding frictional forces
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Rishabh Jain
Rishabh JainLv6
5 Dec 2020
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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

A pole-vaulter is holding a 2.5 kg, 5.0 m long vaulting pole parallel to the ground. The center of gravity of the pole is at its midpoint. He grips the pole with his right-hand 10 cm from the top end of the pole and with his left hand 1.0 m from the top end of the pole. How large should the force be to keep it horizontal? (assume that he exerts only vertical forces on the pole)

A horizontal force of 129.4 N is applied on a 10 kg block which rests on a horizontal surface. If the coefficient of friction is  0.3, the acceleration  should be

A) 9.8 m/sec2

B) 10 m/sec2

C) 12.6 m/sec2

D) 19.6 m/sec2

A horizontal force of 129.4 N is applied on a 10 kg block which rests on a horizontal surface. If the coefficient of friction is  0.3, the acceleration  should be

A) 9.8 m/sec2

B) 10 m/sec2

C) 12 m/sec2

D) 19.6 m/sec2

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