On flat ground, a 70 kg person requiresabout 300 W of metabolic power to walk at a steady pace of5.0 km/h 11.4 m/s2. Using the same metabolic power output, that personcan bicycle over the same ground at 15 km/h. how does the energy used in biking 1 km compare with that used in walking 1 km? Biking takes (a) 1/3 of the energy of walking the same distance; (b) the same energy as walking the same distance; (c) 3 times the energy of walking the same distance; (d) 9 times the energy of walking the same distance.

Q: DERIVE THE INDIVIDUAL ENERGIES (K.E, P.E. and Work) OF THE GIVEN MECHANICAL SYSTEM. CLOCKWISE…

A: Given: To find: K.E, P.E

Q: Does the work required to lift a book to a high shelf depend on how fast (in seconds) you raise…

A: Does the work required to lift a book to a high shelf depend on how fast (in seconds) you raise…

Q: What will the speed of the mass be when it has moved a total distance of 1.0 m up the incline from…

A: For solution refer below images.

Q: A 50 lb object is subjected to an applied upward force of 10 lbf. The only other force acting on the…

A:

Q: A city has a fleet of 10 gasoline cars and 5 gasoline light trucks built in 2009. The annual vehicle…

A: Given data :-fleet of 10 gasoline cars and 5 gasoline light trucks built in 2009. The annual vehicle…

Q: A 75 kg diver dives off a 5.2 m high diving board with a speed of 1.5 m/s, with what speed does the…

A:

Q: A car weighs 2200 lb and is travelling 100 mi/h on a race track that is on a 3% upgrade. The car is…

A: The objective is to determine maximum car acceleration.

Q: Determine the weight of a person whose mass is 100 kg in N and lbf. The local gravitational…

A: Here, Mass = m = 100 kg Gravitational acceleration = g = 9.793 m/s2

Q: An object initially at an elevation of 5 m relative to Earth’s surface with a velocity  of 50 m/s is…

A:

Q: A motor pulls a 1000 kg object up a hill with a 10 degree incline. It starts initially at rest and…

A:

Q: A ball is rolled down a hill that is 36 m in elevation above its surroundings. The ball is initially…

A:

Q: A 75 kg diver climbs up a 6.5 m high diving board in 50 s, how much work is done by the diver and…

A: M=75kg x = 6.5 m t = 50s g=9.80m/s2 To find 1.Work Done 2.Power

Q: An electric resistance heater is used to provide space heating at an efficiency level of 100%. The…

A: Space heating demand: 1137.8 MBHConversion factor: 1 MBH = 1000 BTU/hElectricity cost: $0.13 per…

Q: There is a piston-cylinder system that undergoes a process. The total work done by the system, W, is…

A:

Forms of Energy

Energy is described as the capability to accomplish a task, like the ability to push a block by applying force on it. It is a quantitative property that is used to accomplish work on an object.