Question

Free-body diagram?

Dave slides across a soccer field to try to kick a ball. He comes to a stop because of friction. Which free-body diagram shows him while he is sliding?

I don't think it can be option B because weight always points down...can anyone help me figure out which one it is?

Answer 1

C

Explanation:

Mg points down. The Normal force `F_N` is exactly equal to mg and points up. Friction opposes motion so assuming he slides to the right, the friction force will point left.