26. Pascal's Principle One of the largest helicopters in the world weighs 1.0 x 106 N.
If you were to place this helicopter on a large
piston of a hydraulic lift, what force would
need to be applied to the small piston to lift
the helicopter? The area of the small piston
is 0.7 m2, and the area of the large piston is
140 m2

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 .