to get up on the roof, a person (mass 70.0 kg) places a 6.00-m aluminum ladder (mass 10.0 kg) against the house on a concrete pad with the base of the ladder 2.00 m from the house. the ladder rests against a plastic rain gutter, which we can assume to be frictionless. the center of mass of the ladder is 2.00 m from the bottom. the person is standing 3.00 m from the bottom. find the normal reaction and friction forces on the ladder at its base.

Question

20-12-2022
Physics

Answered

to get up on the roof, a person (mass 70.0 kg) places a 6.00-m aluminum ladder (mass 10.0 kg) against the house on a concrete pad with the base of the ladder 2.00 m from the house. the ladder rests against a plastic rain gutter, which we can assume to be frictionless. the center of mass of the ladder is 2.00 m from the bottom. the person is standing 3.00 m from the bottom. find the normal reaction and friction forces on the ladder at its base.

Answer :

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vrinda347 vrinda347 · Answer 1 · 2022-12-27T23:08:56-05:00

A person (mass 70.0 kg) leans a 6.00-m aluminum ladder (mass 10.0 kg) against the house on a concrete pad, in order to climb the roof. The normal reaction is 132.95N.

What is a body's center of mass?

The point at which the entire mass of the body may be regarded as being present as a point mass, at which its motion is identical to that of the entire body, and at which all forces that operate on a body can be regarded as acting is known as the center of mass of a body or system of particles.

What is a normal reaction in physics?

The force operating perpendicular to two surfaces in contact is known as the normal response force. The force that a surface applies to an object that comes into touch with it stops the object from passing through the surface; this force is called the normal reaction since it is perpendicular to the surface.

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