The 77.0 kg painter in the figure below is using a large stepladder. The base of the ladder is 3.0 m wide, and the ladder is 7.0 m high. The painter is on a step that is 2.0 m above the floor. The horizontal bar of the ladder has a mass of 10.0 kg, and the entire ladder has a mass of 64.0 kg. Assume that the floor is frictionless. A В C 7.0 m 5.0 m 2.0 m 3.0 m

The 77.0 kg painter in the figure below is using a large stepladder. The base of the ladder is 3.0 m wide, and the ladder is 7.0 m high. The painter is on a step that is 2.0 m above the floor. The horizontal bar of the ladder has a mass of 10.0 kg, and the entire ladder has a mass of 64.0 kg. Assume that the floor is frictionless. A В C 7.0 m 5.0 m 2.0 m 3.0 m

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics.

Equilibrium of Forces

The tension created on one body during push or pull is known as force.

Question

(a) Find the force of tension in the horizontal bar and the normal forces that the floor exerts on the ladder.
T =
Number
Njeft =
Number
N
Nright =
Number
(b) Find the action-reaction forces at the hinges A, B, and C. Enter each answer as the magnitude of the component of the hinge forces.
Consider the positive x-direction to be rightwards and the positive y-direction to be upwards.
Az =
Number
N
B =
Number
N
Cz =
Number
N
Ay =
Number
N
By =
Number
N
Cy =
Number

The 77.0 kg painter in the figure below is using a large stepladder. The base of the ladder is 3.0 m wide, and the ladder is 7.0 m high. The painter is on a
step that is 2.0 m above the floor. The horizontal bar of the ladder has a mass of 10.0 kg, and the entire ladder has a mass of 64.0 kg. Assume that the
floor is frictionless.
A
В
C
7.0 m
5.0 m
2.0 m
3.0 m
(a) Find the force of tension in the horizontal bar and the normal forces that the floor exerts on the ladder.
T =
Number
N
Njeft =
Number
N
Nright =
Number
(b) Find the action-reaction forces at the hinges A, B, and C. Enter each answer as the magnitude of the component of the hinge forces.
Consider the positive r-direction to be rightwards and the positive y-direction to be upwards.

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