An elevator has a motor that can produce 25000 W. If this power were used to raise an 850 kg elevator to a height of 35.5 m, how much time would be required for the motion

Q: 1. A 10 meter rope of uniform density is lying on the ground. The rope has a mass of 60 kilograms.…

A: Required :  Work done to lift the rope.

Q: 10. A 2200 kg truck travelling at 68 km/h slams on the brakes and skids to a stop. The frictional…

A:

Q: A person pulls a box with a uniform velocity over a surface. The kinetic frictional force between…

A: Explanation Power is defined as the work done per unit second. If W is the work done in time t then…

Q: In the figure below, a 1400 kg block of granite is pulled up an incline at a constant speed of 1.70…

A: Given: In this question, the given details are, The given figure is, A m=1400 kg block of granite…

Q: 8. An overhead garage door has two springs, one on each side of the door. A force of 15 pounds is…

A: According to Hooke's Law, The pull of an ideal spring is directly proportional to how far you pull…

Q: 4. In a time t=18.00 s, a 60.0-kg student runs at a steady pace up two flights of stairs whose…

A: Given data:  Time (t) = 18.00 s Mass (m) = 60.0 kg Vertical height (h) = 7.80 m Required: Power…

Q: What is the shortest possible time for a forklift with a 2¾ horsepower lifting motor to raise a…

A:

Q: A car could accelerate from rest to 60 mi/hr (27 m/sec) using a 302 V8 in a time of 1.2 sec.  If the…

A: solution

Q: Determine the power in horsepower (HP) that a person weighing 189 pounds develops to climb a ladder…

A: Mass of the person = 189 poundsHeight of the ladder = 3 metersTime = 6.3 seconds

Q: 10. A system of 2 paint buckets, connected by a rope of negligible mass, is released from rest with…

A: Given Masses of two paint buckets are    m=8.0  kg M=5.0 kg Acceleration due to gravity is  g=9.80…

Q: An 8.70 kg block slides with an initial speed of 1.66 m/s up a ramp inclined at an angle of 27.4°…

A:

Q: A race car travelling on a straight and flat stretch of track must overcome 1.5 kN of resistance to…

A: Given : F = 1.5 kN = 1.5 x 103 N v = 190 km/hr = 190 x 1000/3600 = 52.78 m/s

Q: A 97-g cup falls from a kitchen she ters on the ceramic tile floor. Assume that the maximum kinetic…

A: Given Mass m = 97 g = 97 × 10-3 kg Kinetic energy = 2.6 J

Q: A skier of mass 70.0 kg is pulled up a slope by a motor-driven cable that is parallel to the ground.…

A: (a) How much time does it take to get up the slope. (b) What is her change in Gravitational…

Q: 2. A winch is a mechanical lifting or hauling device consisting of a rope, cable, or chain winding…

A: Write the given values with the suitable variables. m=200 kgh=4 mη=45%=0.45 Here, m is the mass, h…

Q: A puppy lifts up his favorite toy with his mouth performing 500 J of work.in 1.5 seconds. What is…

A: given -         work done by puppy = 500 J       Time taken  = 1.5 sec

Q: There are two blocks connected by a rope which is wound over an ideal pulley. This is depicted in…

A:

Q: Three blocks with masses m1 = 4.31 kg, m2 = 8.73 kg, and m3 = 17.2 kg, respectively, are attached by…

A:

Q: 3. A force of 10 N is applied to a small cart for a distance of 2.0 m. (a) What work is done on the…

A:

Q: A 169 N weight elevator carries 20 passengers, which have an average weight of 710 N, a distance of…

A:

Q: A winch motor generates 500 W and uses it to pull a 250 kg crate across a horizontal floor. The…

A: P=500 Wm=250 kgvi=0 m/st=5 s

Q: An elevator has a mass of 1160 kg and carries a maximum load of 612 kg. A constant frictional force…

A: Given data: Mass of elevator, me = 1160 kg Mass of load mL = 612 kg Frictional force, f = 3330 N…

Q: ing: : Your answer is assumed to be reduced to the highest pow Answer:

A: Given data:Mass(m)= 6.40×101kgTime(t)= 5sHeight(h)= 5mRequired:Power(p)

Q: A 48.5 woman starts from rest at the bottom of a flight of stairs that has a total height of 2.56…

A:

Q: A 35.0 kg crate sits on a conveyor belt with s = 0.870. The conveyor belt starts at rest. Once it…

A: Power P required to move a weight of FG=mg at a velocity v is given by the formula P=μFGvcosθ,…

Q: A car engine produces a constant power of P = 341 hp. The car and motor have a combined mass of m =…

A: Given,  P = 341 hp=254284 watts m = 1830 kg t=5 seconds (1.)  Using work energy theoremw=…

Q: A 2000 kg car with a 250 HP (1.865 X 105 W) engine accelerates from rest. If all the engine’s power…

A:

Q: 5. A car, 1000 kg, increases its speed from 12.0 m/s to 21/0 m/s. (a) Find the change in the kinetic…

A: