Need #1 and #2. I attached images of the problems in case it’s necessary.
1. A snowboarder has a speed [18 m/s] at the base of a snow-covered ramp inclined at an angle
[θ = 20 degrees] from the horizontal. The ramp and snowboard share a kinetic friction
coefficient [µK = 0.22]. The snowboarder slides along the ramp [length L] and launches from
the end. After flying through the air, the snowboarder lands on a hillside. The landing point is
[Δy = 3 meters] below the launch point and [Δx = 12 meters] to the right of the launch point.
How long is the ramp?
2. Block A has a mass of 6.00 kg. Block B has a mass of 5.00 kg. The coefficients of friction
between two blocks are µs = 0.400 and µk = 0.200. The coefficients of friction between the
blocks and the ramp are µs = 0.500 and µk = 0.300. The ramp is angled at 15.0° above the
horizontal.
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