How long will it take a 3750-WW motor to lift a 385-kgkg piano to a sixth-story window 20.0 mm above?

Q: An automobile uses 74.6 kW to maintain a uniform speed of 96 km/h. What is the thrust force provided…

A: The rate of work done on a system is defined as the power of that system. mathematically we can…

Q: A motor boat moves at a steady speed of 4 m/s. Water - resistance acting on it is 2460 N. Calculate…

A: Given data:  Velocity (v) = 4 m/s Force (F) = 2460 N Required: Power (P)

Q: A boy exerts 10N force to push a box 5m along a level surface in 10s. How much power is used by the…

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Q: Which of the following is not a unit of power?   a. J/s    b. W⋅s     c.  ft⋅lbs/s  d. hp

A: To find: which is not the unit of power?

Q: A speed boat requires 85.0 kW to move at a constant speed of 14.0 m/s. What is the resistive force…

A: Given information: Here, P is the power required by the boat to maintain its speed v.

Q: How long will it take a 1966-W motor to lift a 3720-N piano to a sixth-story window 1.4 m above?

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Q: Tarzan swings on a 30.0 - m - long vine initially inclined at anangle of 37.0° with the vertical.…

A: Given data:Length of the Tarzan swing, L = 30.0 MAngle = 37.0°

Q: A motor boat moves at a steady speed of 6 m/s. Water - resistance acting on it is 3100 N. Calculate…

A: In this question we are provided with value of force and velocity . With these data we have to…

Q: A truck with a mass of 1677kg travels at a velocity of 30m/s befor beginning to break. The friction…

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Q: A 1,000 -W motor powers a hoist used to lift cars at a service station. -How much time would it take…

A: Given data:  Power (P) = 1000 W Mass (m) = 1500 kg Height (h) = 2 m New Power (P') = 2000 W

Q: A car needs to generate 75.0 hp in order to maintain a constant velocity of 27.3 m/s on a flat road.…

A: Power is given by,

Q: A motor boat moves at a steady speed of 6 m/s. Water - resistance acting on it is 4600 N. Calculate…

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Q: An 17.83kg box is released on a 28° incline and accelerates down the incline at 0.53 m/s. How large…

A: mass of box (m) = 17.83 kg Angle of incline (θ) = 28oAcceleration (a) = 0.53 ms2

Q: 3. How long would it take a 3.2-kW motor to raise a 175-kg piano to an apartment 30 m off the…

A: Power(P)=energytime energy is potential energy=mgh m is mass g is acceleration due to gravity h is…

Q: An elevator weighing 2500 N ascends at a constant speed of 8.0 m/s. How much power must the motor…

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Q: An adventurous archeologist (m = 85.0 kg) tries to cross ariver by swinging from a vine. The vine is…

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Q: rove that the work done on a body in accelerating it from an initial velocity (v) to a final…

A: work done = force ×displacement

Q: For the cases shown in Fig. , the object is released from restat the top and feels no friction or…

A: During free fall the acceleration acting on the mass will be acceleration due to gravity g=9.8…

Q: A 10-kg mass is initially moving up a smooth 300-incline at 5 mps. What distance up the incline will…

A: KEinitial=PEtop12mv2=mghh=v22glsinθ=v22gl=v22gsinθ

Q: While a roofer is working on a roof that slants at 36.0 ∘∘ above the horizontal, he accidentally…

A: Given:-  Working on a roof that slants at 36.0∘ above the horizontal, he accidentally nudges his…

Q: A motor boat moves at a steady speed of 4 m/s. Water - resistance acting on it is 1035 N. Calculate…

A: Given data :                           Force     =    F                     Speed of the boat    =…

Q: A child and sled with a combined mass of 43.0 kg slide down a frictionless slope. If the sled starts…

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Q: In a common test for cardiac function (the “stress test”), the patient walks on an inclined…

A: Given data: The mass of the patient, m=75 kg. The angle of inclination of the slope, θ=12°. The…

Q: A motor boat moves at a steady speed of 6 m/s. Water - resistance acting on it is 4370 N. Calculate…

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Q: Quèstion 7 The formula W=Fdcos0 describes done by a constant force.

A: When a force is acting on a body at an angle then the work done by the force is given by the…

Q: A speed boat requires 63 kW to move at a constant speed of 12.m/s. What is the resistive force in…

A: Power, P = 63 kW = 63000 W Speed, v = 12 m/s   The power of the speed boat is given by  Power =…

Q: 8.5 Check Your Understanding A two-dimensional, conservative force is zero on the x- and y-axes, and…

A: dFxdy = 4 xy Fx = ∫4xy dyFx = 4xy2/2Fx = 2xy2Put x = y = 1 mFx = 2 N dFydx = 4 xy Fy = ∫4xy dxFy =…

Q: A 12.83kg box is released on a 33 degree incline and accelerates down the incline at 0.30m/s^2. What…

A: Given Box mass= 12.83Kg Angle of incline=33 degree Acceleration=0.30 m/s2

Q: A motor boat moves at a steady speed of 7 m/s. Water - resistance acting on it is 5000 N. Calculate…

A: Given data :       Speed of the boat   =   V          Force   =   F        To find :…

Q: 15. A rickshaw puller pulls the rickshaw by applying a force of 100 N. If the rickaw moves with…

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Q: A car moves at a steady speed of 6 m/s. Road - resistance acting on it is 3360 N. Calculate the…

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Q: A speed boat requires 80kW to move at a constant speed  of 15 m/s.What is the resistance force of…

A: Resistance is a measure of the opposition to current flow in an electrical circuit. Here, we…

Q: A 2kg brick is moving at a speed of 6 m/s. How large a force F is needed to stop the brick in a time…

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Q: A motor boat moves at a steady speed of 3 m/s. Water - resistance acting on it is 1440 N. Calculate…

A: Given data: Speed (v) = 3 m/s Force (F) = 1440 N Required: The power (P)

Q: A 300-Watt electric wheelchair has a mass of 50 kg, and carries its 50 kg occupant at constant…

A: Given, Power, P= 300 W, total mass, m=50+50 kg=100 kg, and height, h=10 m.

Q: • Your car produces about 34 kW of power to maintain a constantspeed of 31 m>s on the highway.…

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Q: A 70 kg cyclist develops 210 watts of power while pedaling at a constant velocity of 7.0 m/s east.…

A: Given  Mass of cyclist m=70kg Power P=210W Speed v=7m/s

Q: A 40.0 kg wagon is towed up a hill inclined at 18.0° with respect to the horizontal. The tow rope is…

A: Mass, m = 40 kgTension, T = 140 NDisplacement, s = 77 mInitial velocity, u = 0 m/sθ = 18°Final…

Q: Ac tivity I) Fird the workdona by the suitcase at an angle' of so of a 46N force in pa lling 50° for…

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Q: Jeff of the Jungle swings on a 7.6-m vine that initially makesan angle of 37° with the vertical. If…

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Q: A motor boat moves at a steady speed of 2 m/s. Water - resistance acting on it is 2400 N. Calculate…

A: speed of boat, v=2 m/sWater-resistance, F=2400 NTo find- Power of engine.

Q: Your answer is partially correct. A skydiver weighing 266 Ibf (including equipment) falls vertically…

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Q: (I) By how much does the gravitational potential energy ofa 54-kg pole vaulter change if her center…

A: Given data The mass is m=54 kg The change in height is, ∆h=4.0 m The gravitational potential energy…

Q: 39. 39. A motorbike engine can develop a power of 90000 W in order to keep a constant velocity of 30…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: A certain rain cloud at an altitude of 1.75 km contains 3.20 × 107 kg of water vapor. How long would…

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Q: A 0.6 ton motor is moving on a le way at a speed of 108 km/hr. How retarding force (in Newton) is…

A: Given : m = 0.6 ton = 600 kg vo = 108 km/hr = 30 m/s s = 0.007 km = 7 m

Q: A motor boat moves at a steady speed of 2 m/s. Water - resistance acting on it is 1440 N. Calculate…

A: Given: Speed = 2 m/s  Force = 1440 N

Q: A child and sled with a combined mass of 49.0 kg slide down a frictionless slope. If the sled starts…

A: Given data:  Mass (m) = 49.0 kg Initial velocity (Vi) = 0 m/s Final velocity (Vf) = 4.00 m/s…