A 83kg person climbs a 6.2m ladder in 14s. What is the power out put for this process

Q: A 60-hp electric motor (a motor that delivers 60 hp of shaft power at full load) that has an…

A: The expression for the electric power drawn by each motor and their difference,

Q: A 4500 kg ship moves at a speed of 2 m/s, determine its power (P)? ASsume all the energy losses are…

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Q: What average power does a 1,565 kg car need to go from 0 to 12.6 m/s in 6.86 seconds? Assume a…

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Q: How long will it take a 2100 W motor to lift a 300 kg piano to a six story window locate 16.0 m a…

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Q: A 2400-kg pile driver is used to drive a steel beam Into the ground. The pile driver falls 6.00 m…

A: mass of pile driver (m) = 2400 kg Height of pile driver before coming in contact with top of beam…

Q: A large household air conditioner may consume 14.0 kW of power. What is the cost of operating this…

A: Unit of power=KiloWatt=KW Unit of Time=hour Power=Energy/time Energy=Power X time Unit of energy is…

Q: A 75-hp (shaft output) motor that has an efficiency of 91.0 percent is worn out and is to be…

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Q: While hovering, a typical flying insect applies an average force equal to twice its weight during…

A: Mass of insect (m) = 10 g = 0.01 kg weight of insect (w) = m×g = 0.01×9.8= 0.098 N Applied force (F)…

Q: The average power output of the human heart is 1.33 watts.(a) How much energy does the heart produce…

A: Power is Time is Note:Find:(a) Energy produces by human heart in one day.(b) Estimate the height a…

Q: a 75.8 kg person runs up a flight of stairs having a rise of 5.3 m in a time of 4.5 s. What average…

A: Given data: Mass (m) = 75.8 kg Height (h) = 5.3 m Time (t) = 4.5 s Required: The average power (P)

Q: 10 The diagram below shows two identical wooden planks, A and B, at different incline angles. The…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A 500N girl is in a tire swing that is attached to a rope 3m long and loops-the-loop. Determine the…

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Q: 8. A 55-kg skateboarder enters a ramp moving horizontally with a speed of 6.5 m/s, and leaves the…

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Q: A truck weighing 3.0 x 10^4 newtons was driven up a hill that is 1.6 x 10^3 meters long to anarea…

A: Weight of the truck  W = 3×104 N The weight is a measure of the force of gravity acting on the…

Q: 14. A chain is being unwound from a winch. The force of gravity on it is 12.0 N/m. When 20 m have…

A: The expresion for the work done is,

Q: A crane lifts a load of 6000 N through a vertical distance of 15 m in 30 s.What is the average…

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Q: Ace Industries has a 50 kW air compressor that operates at full-load (LF = 1), all day for 365 days…

A: If a motor were 100% efficient, there would be an electric load of 50 kW. Since the motor is only…

Q: An electric chain hoist is used to lift a 250 kg crate.  The motor provides 2.1 kW of input power to…

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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.