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shusha [124]
2 years ago
9

Ms. PB is pushing Mr. Rigney in a wheelchair with a force of 10 N East, while Mr. Rigney is using his arms to

Physics
1 answer:
kumpel [21]2 years ago
4 0

The net force is 6 N East

Explanation:

First of all, we start by noticing that all the forces act along the direction East-West, so we can simply find the net force by using algebraic addition.

In order to find the net force on the wheelchair, we need to define a positive direction and write down all the force with the proper sign.

Let's choose East as positive direction. Therefore, we have the following forces:

F_1 = +10 N (east), the force applied by Ms. PB

F_2 = +5 N (east), the force applied by Mr. Rigney

F_f = -2 N (west), the frictional force, acting in the opposite direction

F_r = -7 N (west), the air resistance, acting in the opposite direction

Taking into account the correct signs, we can now find the net force on the wheelchair:

F=F_1+F_2+F_f+F_r = +10 + 5 +(-2) + (-7) = +6 N

And the positive sign tells us that the direction of the net force is East.

Learn more about forces:

brainly.com/question/11179347

brainly.com/question/6268248

#LearnwithBrainly

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