A cyclist intends to cycle up a 7.8° hill whose vertical height is 150 m. Assuming they start from rest and the mass of the bicycle plus the cyclist is 75 kg (a) Calculate how many kJ of work must be done?
(b) If the cyclist instead does 120 kJ of work, what will their velocity in m/s be at the top of the hill?

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.