1)A gardener pushes a 12 kg lawnmower whose handle is tilted up 37 degrees above horizontal. The lawnmower's coefficient of rolling friction is 0.15. How much power does the gardener have to supply to push the lawnmower at a constant speed of 1.2 m/s? ok so i have tried this problem and still can't seem to get it right.. i am taking power to be equal to the force*velocity so i have been doing this mass*gravity*cos(37)*friction*velocity=power...i have no idea what else to try. i need some suggestions... i have tried finding mass*gravity*cos(37) and subtracting if from mass*gravity*friction and then multiplying that number by the velocity and that was wrong to.