FIRST PROBLEM 1. The problem statement, all variables and given/known data A skier of mass 70 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 60m up a 30 degree slope (assumed frictionless) at a constant speed of 2.0 m/s? (b) What power must a motor have to perform this task? 2. Relevant equations I am not sure what they should be. 3. The attempt at a solution I do not know where to begin and with what equations. SECOND PROBLEM! 1. The problem statement, all variables and given/known data A 50.0-kg student climbs a 5.00-m-long rope and stops at the top. (a) What must her average speed be in order to match the power output of a 200 W light bulb? (b) How much work does she do? 2. Relevant equations I do not know where to begin. 3. The attempt at a solution I do not have an attempt. Thanks for your time and help.