What average power would a 1500 kg speedboat need to go from rest to 25 m/s in 6 seconds if the water exerts a constant drag force of magnitude 500 N and the acceleration is constant? a) 113 hp b) 56.5 hp c) 226 hp

Q: A 1250-kg car drives up a hill that is 16.2 m high. During thedrive, two nonconservative forces do…

A: The expression for the required change in kinetic energy,

Q: An elevator cab has a mass of 4510 kg and can carry a maximum load of 1910 kg. If the cab is moving…

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Q: A 3.0-hp motor pulls a mini elevator up at constant speed. The elevator has a mass of 12.0 kg and…

A: Given, P = 3 hp m = 12 kg t = 7 s We know, Power = Work done/time = Force x Velocity and h = ut +…

Q: An elevator car has a mass of 1600 kg and is carrying passengers having a combined mass of 200 kg. A…

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Q: *67. O The cheetah is one of the fastest-accelerating animals, because it can go from rest to 27 m/s…

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Q: average power delivered

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Q: Question 9: An elevator of mass M is accelerating downward with constant acceleration A. Friction…

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Q: 3. An 8.5 kg package in a mail sorting room slides 2.0 m down a chute that is inclined at 53.0°…

A: Given The mass of the package is m=8.5 kg. The distance travel by the package is d=2 m. The angle…

Q: A 11.7 kg sled starts from rest at the top of a hill that is inclined at 29.3 degrees to the…

A: Given data as per question mass of sled =  11.7kg angle made with horizontal   =  29.3 distance  =…

Q: Q1. A body of mass 40 kg climbs a vertical rope 10 meters in length in 15 sec with constant…

A: Given data:  Mass (m) = 40 kg Height (h) = 10 m Time (t) = 15 s Required: Work (W) and Power (P)

Q: A tower crane has a hoist motor rated at 155 hp. If the crane is limited to using 71.0% of its…

A: Given:  Crane's hoist motor rate  = 155 hp           Crane is limited to using  71 percent of its…

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: Gunther froze Ice King into a 100.-kg block of ice. The block then slides along a mountain slope…

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Q: A truck accelerates uniformly from rest to 20 m/s in 8 s along a level stretch of road. Determine…

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Q: A fully loaded, slow-moving freight elevator has a cab with a total mass of 1200 kg, which is…

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Q: A top fuel dragster with a mass of 600.0 kg starts from rest and completes a quarter mile (402 m)…

A: Given data- A top fuel dragster with a mass m=600.0 kg initial velocity Vi=0 m/s (rest) final…

Q: An iceboat is at rest on a frictionless frozen lake when a sudden wind exerts a constant force of…

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Q: At what speed does a 1200 kg compact car have the same kinetic energy as a 19000 kg truck going 25…

A: Note:  1m/s = 18/5 km/h

Q: An 1800 kg car starts from rest and accelerates to 25.0 m/s in 16.0 s. The force of air resistance…

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Q: One boat tows another boat by means of a tow line, which is under a constant tension of 465 N. The…

A: Given data: Tension force (F) = 465 N Velocity (v) = 4.60 m/s Time (t) = 1.10 min Required: The work…

Q: An elevator can carry a maximum load of 1168 kg (including the mass of the elevator car). The…

A: The weight pf the counter drops down a height h when the elevator moves up a height. So the elevator…

Q: power

A: Given: Mass of the dragster = 650 Kg initial speed = 0 final speed = 110 m/s Distance= 400 m…

Q: A wowan jumps from a high wall and lands in soft sand. The sand exerts an average upward force of…

A: Work done by the sand is the product of the force on woman by the sand times the displacement of the…

Q: 8. Calculate the power required of a 1400kg car under the following circumstances: (a) the car…

A: a) Let the force F required to speed up the car. This can be calculated using Newton’s second law of…

Q: When an automobile moves with constant speed down a highway, most of the power developeu Dy the the…

A: GIVEN:A car moving down a highway with a speed of 25m/s and has a 205 horsepower engine. 1hp=746W…

Q: What is the work required by friction to stop a 6.7 kg block sliding on a table if it initially has…

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Q: A 1.50 x 103-kg car starts from rest and accelerates uniformly to 17.8 m/s in 12.8 s. Assume that…

A: Fen -Far = ma  Fen = ma + FarFen = Fprce developed by engine Far = force due to air resistance…

Q: 6.The engine of a 1500 kg automobile has a power rating of 75 kW. Determine the time required to…

A: Given: Mass of the engine = 1500 Kg Power rating = 75 KW speed = 100 Km/hr

Q: A crate on a motorized cart starts from rest and moves with a constant eastward acceleration of a =…

A: Given: The eastward acceleration of crate (a) = 2.2 m/s2. The force applied on crate (F) = 5.4t.

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

A: Write the given values with suitable variables. M=1500 kgh=60 mt=3.5 min=210 sm=930 kg Here, M, h,…

Q: 2) a 1550-kg car moving at a constant speed of (900 km/hr) Its takes (16,000W)to keep it on alevel…

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Q: A cable “lowers” a 3000 kg elevator at a constant velocity for a distance of 35.0 m What is the work…

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Q: Suppose the coefficient of kinetic friction between a loaded 47.0 kg Eskimo pulled a sled and snow…

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Q: Example : An elevator car has a mass of 1000 kg and is carrying passengers having a combined mass of…

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Q: The kinetic energy of a 5.0 kg object is initially 35 J. It is then subjected to a constant force so…

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Q: 15. A constant force is applied on a block having a mass of 4 kg and changes its velocity from 4 m/s…

A: Given data : Block's mass, m=4 kg Block's initial velocity, vi=4 m/s Block's final velocity, vf=8…

Q: Q2) A 5.00-kg block is set into motion up an inclined plane with an initial speed of 8.00m/s. The…

A: We need to determine the friction force exerted on the block using energy conservation.

Q: 1300 kg elevator car carries passengers with combined mass of 520 kg. It is ascending at a constant…

A: 1 hp power = 746 watt Power of given engine = 45 × 746 = 33570 W Total mass of system = 1300 +520 =…

Q: A car (m = 1.39 x 103 kg) accelerates uniformly from 3.75 to 18.5 m/s in 7.50 sec. Assume that a…

A: Mass of the car = m = Initial velocity = Final velocity = Time = t = 7.5 s Part A. According to…

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: 90-kg sprinter accelerates from rest to a speed of 11.0 m/s in 5.2 s. (a) Calculate the mechanical…

A: mass of sprinter =m = 90 kg initial velocity =V0= 0 m/s final speed = V = 11 m/s time = t =5.2 s

Q: Mike is cutting the grass using a human-powered lawn mower. He pushes the mower with a force of 45 N…

A: The given values are, F=45 Nθ=41°d=9.1 m

Q: A person pulls a 50-kg crate along a horizontal floor by a constant force Fp=100N, which acts at a…

A: Given data The mass of the crate is given as m = 50 kg. The constant force is given as Fp = 100 N.…

Q: An elevator car (8.14a) has a mass of 1 600 kg and is carrying passengers having a combined mass of…

A: Given: The mass of the elevator is m=1600 kg. The mass of the passenger is m'=200 kg. The friction…

Q: A car travels with a constant speed of 15 m/s. The car's engine produces a 4000N pushing force in…

A: Given Data:- Speed of the Carr is v=15 m/s Force produced by the engine of the car is F=4000 N…