ANYONE GOOD AT PHYSICS?!?! NEED HELP. A 1.00 cm high object is placed 4.70cm to the left of a converging lens of focal length 7.80cm. A diverging lens of focal length -16.00cm is 6.00cm to the right of the converging lens.

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 .