What average power is needed to lift a 65-kg vendor vertically upward at a uniform speed of 0.44 m/s?

Q: An engine is being used to raise a 89.0 kg crate vertically upward. If the power output of the…

A: Given: mass of crate, m = 89 kg power output of the engine, P = 1620 W vertical distance, h = 18.7 m

Q: A tower crane has a hoist motor rated at 153 hp. If the crane is limited to using 75.0 % of its…

A:

Q: A weighlifter lifts a 50-kg barbell a vertical height of 2.0 m in 5.0 s. What is the average power…

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Q: 3An elevator lifts a load of mass 10 kg a distance of 50m in 14 s. Find the work done and the power…

A: Given Data : The mass that the elevator lifts is given as m = 10 Kg. The height by which the load is…

Q: How much power is required to lift a heavy solid concrete beam with mass 91.22 kg upward with a…

A: Given Mass =91.22 kg speed v =3.8 m/s

Q: 9 A box moves on a frictionless horizontal surface under the influence of the two forces = F₁ = (50î…

A: Power = It is the dot product of force vector to the velocity vector.

Q: A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting…

A: The answer is below

Q: A (6.40x10^1) kg woman runs up a flight of stairs in 5 s. Her net upward displacement is 5 m. What…

A: Given data:  Mass (m) = 6.40×101 kg Time (t) = 5 s Height (h) = 5 m Required: Power (P)

Q: A 1800 kg car accelerates from rest to a velocity of 18.0 m/s in 8s. Calculate the power output of…

A: Given, mass (m) =1800 kg velocity (v) = 18 m/s time (t) = 8 secs

Q: A tower crane has a hoist motor rated at  167 hp . If the crane is limited to using  66.0%  of its…

A:

Q: A tractor tows a plane from its airport gate, doing 8.8 MJ of work. The link from the plane to the…

A:

Q: A tower crane has a hoist motor rated at  167 hp. If the crane is limited to using  65.0 % of its…

A: A tower crane has a hoist motor rated at  167 hp. If the crane is limited to using  65.0 % of its…

Q: if an 80 kg sprinter can accelerate from a standing start to a speed of 10 m/s in 3 s, what average…

A:

Q: A horse is pulling a sled at a velocity of 3.5 m/s. If the horse's power output is 250 W, what is…

A: Given data:  Velocity (v) = 3.5 m/s Power (P) = 250 W Required: Force (F)

Q: A 160-kg object is lifted at a constant speed through a height of 36 m by a crane. If the crane…

A: If a body is lifted up to a height  with a constant speed, the force needed is equal to its weigh…

Q: The three ropes shown in the bird's-eye view of the figure are used to drag a crate 2.9 m across the…

A:

Q: 16. A 1500 kg car accelerates uniformly to a speed of 18 m/s in 4.59 seconds. Find the average power…

A: Given :    mass, m = 1500 kg    speed, v = 18 m/s    Time, t = 4.59 s We have, acceleration , a = vt…

Q: How much power is required to lift a heavy solid concrete beam with mass 60.21 kg upward with a…

A:

Q: A 70-kg student climb stair as shown, Δy = 12 m and it is completed in 6.0 s. For the second time,…

A: Given data: Mass (m) = 70 kg Vertical height (h) = Δy = 12 m For first time Task completion time…

Q: Four students run up the stairs in the times shown. Rank in order, from largest to smallest, their…

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Q: A fully loaded, slow-moving freight elevator has a cab with a total mass of 1500 kg, which is…

A: The situation is basically the motor is helping to raise a net mass (1500-920)=580 kg by a height of…

Q: Robin pushes a wheelbarrow by exerting a 197N force horizontally. Robin moves it 65 m at a constant…

A:

Q: 11. A ball weighing 20 N is dropped from rest from a height of 8 meters above the ground. Assuming…

A: Total mechanical energy is the sum of kinetic energy and potential energy.

Q: The box has a mass of 50 kg and is at rest. When it is pulled with 1000 N it reaches speed of 5m/s.…

A:

Q: A football player is dragging a 100 kg sled across an Astroturf field at a constant speed of 5 m/s…

A: Mass is sled (m) = 100kg  Velocity (v) = 5m/s Tension in the rope is (F) = 500N

Q: A bird of mass m = 2kg flies at a height h = 10 m from the ground with a constant horizontal speed v…

A: The mass of the bird, m=2 kg   The height, h=10 m   The horizontal speed, v=10 m/s

Q: A warehouse worker uses a forklift to lift a crate of pickles on a platform to a height 3.75 m above…

A:

Q: A (5.00x10^1) kg woman runs up a flight of stairs in 5 s. Her net upward displacement is 5 m. What…

A: Given  Mass is m=50 kg Acceleration due to gravity is g=9.80 m/ s^2 Height is h= 5 m  Time taken is…

Q: An engine uses 20000 N of force to power a car at an average speed of 5.0 m/s. What is the average…

A: POWER =FORCE×VELOCITY

Q: A 500 kg horse can provide a steady output power of 750 W (that is, 1 horsepower) when pulling a…

A: Write the formula for power in terms of force. Therefore, the power output of the dog be:

Q: An airplane of mass 4500 kg is cruising at a speed of 49.0 m/s at an altitude of 175 m. What is its…

A:

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

A:

Q: A particle, mass 8 kg, moves along the y axis with a speed of 3.3 m/s. It experiences a force of 16…

A:

Q: A system of two paint buckets connected by a lightweight rope is released from rest with the 12.0 kg…

A:

Q: What average power is needed to lift a 65-kg vendor vertically upward at a uniform speed of 0.44…

A: Given: The mass (m) of the vendor is 65 Kg. The uniform velocity (v) of the vendor is 0.44 m/s.…

Q: How much power is required to raise a 30-kg crate a vertical distance of 6m in a time of 4 seconds?…

A: Given, Mass=30kg Distance=6m Time=4sec

Q: An electric engine in a 2.0 kg remote-control toy car has a power output of 4.0 W. How fast will it…

A: Mass of engine = 2 kg  Power output = 4 W  Time = 5 seconds

Q: A pump lifts water at the rate of 6 m^3/s to a height of 120 m and the friction loss in the pipe is…

A:

Q: The aircraft carrier USS George Washington has mass 1.0 ×108kg. When its engines are developing…

A: Let Pout be the total power output of the engines, P is the power used to push the ship through the…

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: certain 1500 kg car can accelerate from rest to a velocity of 30.0 m/s in 8.0 s. What is the average…

A: power = work done/time

Q: a bucket of water is raised from the bottom of a well to the top in 20 seconds. it took 5000 j to…

A: Given data:   Time (t) = 20 s Work done (W) = 5000 J Required: Power (P)

Q: A swimmer moves through the water at an average speed of 0.22 m/s. The average drag force is 110…

A: Given , velocity of the swimmer V  = 0.22 m/s Average drag force F = 110 N The swimmer has to do…

Q: Consider a 1,499.74-kg car cruising at constant speed of 73.89 km/h. Now the car starts to pass…

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Q: For the three cases shown below, assuming the displacement is 4.0 m to the right. Match the answers…

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Q: A new car model claims that a certain 1600 kg car can accelerate from rest to a speed of 25m/s in a…

A: Given  Mass of car, m = 1600 kg  Accelerates from rest at speed of 25 m/s in time 10 sec

Q: How much power is required to raise a 30-kg crate a vertical distance of 6m in a time of 4 seconds?…

A: The potential energy of a body is given by PE = mgh, where m = the mass of the body g = acceleration…

Q: What is the average power output of a 55.0 kg woman who does 50 deep knee bends in which her center…

A: The expression for the output power is,

Q: A pump lifts water at the rate of 6 m^3/s to a height of 120 m and the friction loss in the pipe is…

A: