Aman is dragging a trunk up the loading ramp of a movers truck. the ramp has a slope angle of 20.0°, and the man pulls upward with a force → f f→ whose direction makes an angle of 30.0° with the ramp. how large a force → f f→ is necessary for the component fx parallel to the ramp to be 90.0 n

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 .