A bicycler is moving at 8m/s when they reach the top of a 20m high hill. They coast 15m to the bottom of the hill. They are moving 15m/s when they reach the bottom of the hill. The combined mass of the bicycler and the bicycle is 95kg. a. Calculate the work done by friction on the bicycler. b.Calculate the magnitude of the force of friction acting on the bicycle.

Q: QUESTION: A 75 kg carpenter ascends a 7.0 m vertical ladder to a house's flat roof. He then travels…

A: Since we only answer up to 3 subparts so we will answer first 3. Please resubmit the question by…

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Q: 5. (a) What is the kinetic energy in joules of a 1000kg automobile traveling at 90km/h? (b) How much…

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Q: You are using a rope to lift a 14.5 kgkg crate of fruit. Initially you are lifting the crate at…

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Q: (a) A 75.0 kg man pushes on a 5.0 x 105 ton wall for 250 s but it does not move. How much work does…

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Q: 1. a) Calculate the work done when a truck pulls on a load at a 35° angle with a force of 4000 N and…

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Q: A 0.41-kg particle has a speed of 3.0 m/s at point A and kinetic energy of 8.0 J at point B. (a)…

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Q: An object moves in the positive x-direction under the influence of a force Fx . A graph of Fx vs. vx…

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Q: 3. a 0.35-kg fruit is falling from a tree with a speed of 5.0 m/s after t = 1.0 s. At t= 2.0 s, the…

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Q: 1. A 10.0-kg crate slides along a horizontal frictionless surface at a constant speed of 4.0 m/s.…

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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.