Question

you push a 15kg cart with a force of 20N, 30 degrees below the horizontal. what is the normal force? Please help test tomorrow.

Answer 1

normal force downward:

mg+ 20sin30

Answer 2

It says nothing about friction, so assume its frictionless.

Answer 3

Is it on a level road?
If so

m g + 20 sin 30

15 * 9.81 + 10

Answer 4

can you explain the 20sin30?

Answer 5

it is the downward component of the 20 N force you are pushing.

Answer 6

Thank you so much!

Answer 7

You are welcome :)