Help with Questions 1-4

Herlol Juo cew ear 1. A 125 N force is applied at 37 to push a stroller for 46 m at a constant velocity. a. How much work is done by the force? adobeaw acsin all b. How much work is done by friction? quibsup zaw azam FiH c. How much work is done by gravity? d. How much total work is done? A person applies a 14 N force parallel to the surface in order to roll a cart 2 m up a 30 incline at a constant speed. a. How much work does the person do? " eleven 162 add # 5 b. How much total work is done? c. If this takes 22 s, solve for power. d. What is the cart's change in kinetic energy? wonsdisgrew go onA e. If the cart's mass is 800 g and it is initially rolling at 2.5 m/s before entering the ramp, what is its final velocity? weds el saw 3. A machine has a power output of 300 Watts. What would be the machine's power if: a. The time was doubled? Wb. The amount of work was doubled?679 pena gniggs Wood,Der A c. The amount of work was cut in half? Solfenians surla bib d. The time was cut in half? e. The work was tripled and the time was doubled? (000,Off. The work was doubled and the time was doubled? Smudonthi Maquila yl svetl ouiand alrb a A crane lifts a load of steel that weighs 9.3 x 105 N a distance of 100 m. It takes 5 minutes to complete the task. a. How much work is done by the crane? b . How much power does the crane produce? . What is the crane's change in kinetic energy