During a lab experiment on friction, students pull a crate of weights with mass 120 kg along the floor. If they pull with a force of 190 N, and the force of friction between the crate and the ground is measured to be 160 N, what is the net force acting on the crate? What acceleration will the crate experience?

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .