A 2.3 kg box, starting from rest, is pushed up a ramp by a 10 N force parallel to the ramp. The ramp is 2.0 m long and tilted at 17°. The speed of the box at the top of the ramp is 0.80 m/s. Consider the system to be the box + ramp + earth.a. How much work W does the force do on the system?b. What is the change ΔK in the kinetic energy of the system?c. What is the change ΔUg in the gravitational potential energy of the system?d. What is the change ΔEth in the thermal energy of the system?

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Q: m A mass m1 = 5.5 kg rests on a frictionless table and connected by a massless string to another…

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Q: 0.8 0.6 0.4 0.2 0.25 0.50 0.75 1.00 Position, x (m) Force, F (N)

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.