# Four forces act on an object, given by A = 49.3 N east, B = 47.3 N north, C = 90.7 N west, and...

## Question:

Four forces act on an object, given by

A = 49.3 N east,

B = 47.3 N north,

C = 90.7 N west, and

D = 92.7 N south.

(Assume east and north are directed along the +x-axis and +y-axis,respectively.)

a) What is the magnitude of the net force (in N) on the object?

b) What is the direction of the force? (Answer in degrees counterclockwise from the +x-axis.)

## Force:

Force is an effort that tries to deform the shape of a fixed body. If the body is free to move, then the same effort changes the position of the stationary body. To evaluate the effect of force on must needs the magnitude and direction of the force. So force is a vector quantity.

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Given Data

• The eastward force is: {eq}A = 49.3\;{\rm{N}} {/eq}.
• The northward force is: {eq}B = 47.3\;{\rm{N}} {/eq}.
• The westward force is:...

External Force: Definition & Examples

from

Chapter 1 / Lesson 22
32K

In this lesson, we are going to learn about external forces and their effects on the body to which they are applied. We are also going to distinguish external forces from internal forces.