Q1. A dare devil is shot out of a cannon at 45.0 degrees to the horizontal with an initial speed of 25.0 m/s. A net is positioned a horizontal distance of 50.0 m from the cannon.
A. At which height above the cannon should the net be placed in order to catch daredevil?
B. At which velocity does the daredevil strike net?
Q2. Starting from rest, a 5.30 kg block slides 2.70 m down a rough 30.0° incline. The coefficient of kinetic friction between the block and the incline is μk = 0.436.
Find out the work done by the force of gravity.