A 1000 kg car is initially travelling at 26ms26ms along a horizontal road when the driver hits the brakes. The brakes provide a constant force that slows the car to a stop in 10 seconds. The power generated by the brakes was Answer Watts.

Q: Consider a 1,492 kg car cruising at constant speed of 59 km/h. Now the car starts to pass another…

A: Given,Mass of car m=1,492 kg initial speed u=59 km/hru=59 km/hr×518m/s1km/hr=16.39 m/scar has to…

Q: A 261 kg ball from a demolition machine is propelled sideways until it is 4.83 m above its lowest…

A: Given : Mass of a ball (m) = 261 kg Height (h) = 4.83 m

Q: When its engine of power 74 kW is generating full power, a small single-engine airplane with mass…

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Q: A bucket is filled with cement and weighs 800 N. A motor, fixed at the roof of a high building under…

A: Given,Weight of the bucket, F = 800 Nheight of the building, h = 10 mtime, t = 5.0 s

Q: An 80-kg jogger that is initially running at 5.0 m/s uniformly accelerates to 8.0 m/s in a time of…

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Q: A 96-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 350…

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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: NASA claims that their latest space rocket of 200 thousand slugs can accelerate from rest to a speed…

A: Let v denotes the speed, t denotes the time taken, and a denotes the acceleration. Therefore, the…

Q: A 618-kg elevator starts from rest and moves upward for 3.10 s with constant acceleration until it…

A: Given Data: The mass of an elevator is, m=618 kg The time required to move upward is, t=3.10 s The…

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: A train, of mass 22 tonnes, moves along a straight horizontal track. A constant resistance force of…

A: Given, Mass,m=22tonnes=22×103kgForce,F=-5000NPower,P=240kW=240×103WInitial Velocity,u=20m/sFinal…

Q: A world-class sprinter running a 100 m dash was clocked at 5.4 m/s 1.0 s after starting running and…

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Q: A toad with mass of 188 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

A: Given: Toad's mass, m=188 g=0.188 kg Toad's jumping angle w.r.t horizontal, θ=35° Initial velocity,…

Q: A car with a mass of 900.0 kg climbs a 20.00° incline at a steady speed of 60.00 km/hr. If the total…

A: The steady speed of a car is, v=60 km/hr=16.67 m/s The total resistive or dissipative force acting…

Q: A man on a sleigh has a total mass of 137.6 kilograms. The sleigh starts from rest and slides down a…

A: Given Data:  Total Mass, M=137.6 kg Initial velocity, u=0 m/s Final velocity, v=6.2 m/s

Q: Assume g= 9.8 m/s² near the surface of the Earth. A block of bricks is raised vertically to a…

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Q: When its engine of power 76 kWkW is generating full power, a small single-engine airplane with mass…

A: Given:               Engine Power , P = 76 kW = 76×103W                                mass  M= 710…

Q: A motorist driving a 147-kg car on level ground accelerates from 20.0 m/s in a time of 5.00 s.…

A: The kinetic energy of the car is, KE=12mv2KE=12147 kg20.0 m/s2KE=29400 J

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: 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: Resistance to the motion of an automobile consists of road friction, which is almost independent of…

A: Solution:Given:1 km/h = 0.27778 m/sW = weight of the car = 8600 Ng = gravitational acceleration =…

Q: A toad with mass of 117 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

A: Given data The mass of the toad is m=117 g The angle of projection is θ=26o The initial velocity is,…

Q: 1.50 × 10³-kg car starts from rest and accelerates uniformly to 16.9 m/s in 11.9 s. Assume that air…

A: Given Mass of car = m = 1.50 × 103 kg IInitial velocity = u = 0 Final velocity = v = 16.9 m/s Time…

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

A: Given: mass of top fuel dragster, m = 600 kg Initial speed, u = 0 (starting from the rest) Final…

Q: A pail in a water well is hoisted by means of a frictionless winch, which consists of a spool and a…

A: Given, height lifted , h = 24.0 m time, t = 15.0 s mass of pail of water , m = 6.60 kg  We know that…

Q: A car of mass 920.0 kg accelerates away from an intersection on a horizontal road. When the car…

A: mass of car (m) = 920 kg speed (v) = 12.4 msNet power (P) = 5300 W

Q: A 1.50 ✕ 103-kg car starts from rest and accelerates uniformly to 17.9 m/s in 12.8 s. Assume that…

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Q: The driver of a passenger car puts the car to "rest" at the speed of 90 km/h, therefore, the car's…

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Q: Calculate the average power necessary for a 55.8 kg person to run up a 5.0 m high, sloped hill, in…

A: The expression for the average power is P=Wt Here,P  is the average power,  iWs the work done by…

Q: A 1.50 x 10°-kg car starts from rest and accelerates uniformly to 17.9 m/s in 11.3 s. Assume that…

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Q: A man of mass 60.0 kg takes 4 seconds to run up a 4-m high stairs. Which of the following gives the…

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Q: You kick a 225 g rock from the edge of a cliff while hiking along the edge of the Grand Canyon. (a)…

A: Given: Rock mass m =225 g = 225×10-3 kg Time t1 =4 s

Q: A transport truck driving at a constant speed of 82.0 km/hr on a flat stretch of highway must…

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Q: man pushes a lawn mower on a level lawn with a force of 211 N. If 52% of this force is directed…

A: