Calculate the amount work is done by the engine of a 9000 kg truck if it accelerates from 5 m/s to 18 m/s? If the engine performs this acceleration in 8 seconds, calculate the power that the engine delivers.

Q: Multiple-Concept Example 13 presents useful background for this problem. The cheetah is one of the…

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Q: A child is standing on top of a 15ft hill, getting ready to run down all the way to the bottom. If…

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Q: A skier goes down a hill and passes point A with a velocity of 10m/s. Calculate the speed of the…

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Q: If the roller coaster car at the top of the 95.0 m drop hill has a speed of 2.25 m/s, (a) what will…

A: Step 1: Step 2: Step 3: Step 4:

Q: A 3500 lb SUV accelerates from 0 to 30 mph over a distance of 80 feet. Use work and energy to…

A: As per the work-energy theorem, Here, W, K, F, d, m, u, and v represent the force’s work, the car’s…

Q: 3. A record was set for stair climbing when a man ran up the 2400 steps of the Empire State Building…

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A: The kinetic energy of the car before the collision is given as, The kinetic energy of the car after…

Q: The mechanical power of a cyclist pedaling at a constant speed of 7.5 m / s is 152 W. a) What is…

A: Velocity = 7.5 m/s Power= 152 w Frictional force ? Power = force . Velocity Force = power / velocity…

Q: Adam drove a bike 1260 m with an average speed of 115m/s. Suppose he applied the brakes to reduce…

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Q: A 45 kg athlete runs up a flight of stairs in 4 s. His net upward displacement is 9 m. What average…

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Q: Question 9. The cheetah is one of the fastest accelerating animals, for it can go from rest to 9.4…

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Q: Calculate the work done on the suitcase by the friction force. Calculate the total work done on the…

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Q: A 70 lb child runs uphill, gaining 50 feet in elevation in 14 seconds. Calculate the average power…

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Q: A crane pulls up a car weighing 500kg to a vertical height of 4m. Calculate the work done by the…

A: Work is Calculated by:   Work = Force x Displacement   Work = mgH           ......(1)     ( Here H…

Q: an athlete lifts a barbell that weighs 400 N from the ground to a height of 2.20 m at a constant…

A: Given data:  Weight (mg) = 400 N Height (h) = 2.20 m Time (t) = 1.60 s Required: The output power in…

Q: How much work done in k J( kilo joule) can a 3 hp (horsepower) motor do in 1 hour? (Write the full…

A: Power is the amount of force per unit velocity Power=force×velocity P=Force×distancetimeP×time=work…

Q: A person in good physical condition can put out 100 W of useful power for several hours at a…

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Q: A 1400-kgrace car can go from 0 to 100 km/h in 4.8 s . What average power is required to do this?…

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Q: A 1400 kg car starts from rest and accelerates uniformly to 19.5 m/s in 20s. a)Find the average…

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Q: An advertisement claims that a(n) 1600 kg car can accelerate from rest to 26 m/s in 8.4 s. Given:…

A: Given Mass of the car is given as m=1600 kg Initial speed of the car is vi=0 Final speed of the car…

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: Suppose a 74 kg sprinter, starting from rest, runs the first 9 m in 3 s at constant acceleration, a…

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Q: Cite an example wherein  force exerted on a body does no work. Explain.

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Q: 1001 30.Suppose the ski patrol lowers a rescue sled and victim, having a total mass of 90.0 kg, down…

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Q: A 1000 kgm car travelling at 100 km/hr starts its brakes to slow down. it travels a distance and…

A: Given data: Mass of car, m=1000 kg Initial velocity of car, u=100 km/hr=27.78 m/s (since, 1 m/s =…

Q: A horizontal spring is stretched 10 cm and then released from rest. Will the spring ever stretch a…

A: Given that: The spring was stretched 10 cm initially and released from rest.

Q: At Schlitterbahn, a 75.0 kg person rides a 12.0 m high water slide. If dissipative forces do -6250 J…

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Q: A 899 kg car accelerates from rest up to 26.0 m/s in 6.14 s. What is the average power output of…

A: The mass of the car is m = 899 kg. The initial velocity of the car is denoted by u = 0 m/s. The…

Q: For exercise, an athlete lifts a barbell that weighs 400 N from the ground to a height of 2.20 m at…

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