Please help me with physics homework! Provide explanation.

Physics

1 answer:

zaharov [31]3 years ago

3 0

The direction of friction force is always the opposite of the direction of the movement.

In this problem, we have an applied force of 20N and this creates a movement. Then, the friction comes in and applies a force of 2.4N.

Because they are in different directions, we need to subtract them:
$20 - 2.4 = x \\ \\ x = 17.6$
We don't know the direction because there is no picture (at least I can't see ☺️). But the movement will be to the direction of the 20N.

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