You ski straight down a 41.4 slope, starting from rest and traveling a distance of 11.5 m along the slope. Find your final velocity, assuming...

1. You ski straight down a 41.4° slope, starting from rest and traveling a distance of 11.5 m along the slope. Find your final velocity, assuming negligible air resistance and friction.2. When an archer pulls an arrow back in his bow, he is storing potential energy in the stretched bow.(a) Compute the potential energy stored in the bow, if the arrow of mass 4.75 10-2 kg leaves the bow with a speed of 20.0 m/s. Assume that mechanical energy is conserved.(b) What average force must the archer exert in stretching the bow if he pulls the string back a distance of 30.0 cm?3. A 1.06 kg block slides down a 30.0 m long 31.0° incline at constant velocity. How much work is done by friction?