A car accelerates uniformly from rest to 17.3 m/s in 7.12 s along a level stretch of road. Ignoring friction, determine the average power required to accelerate the car if (a) the weight of the car is 8.90 x 103 N, and (b) the weight of the car is 1.66 x 104 N. (a) Number i (b) Number Units Units

Q: A 65-kg skier with an initial speed of 11.2 m/s coasts up a height h=2.6-m high rise as shown in the…

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Q: A cyclist pedals along a slope which is at 5.0° to the horizontal. The cyclist starts from rest at…

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Q: A force of 7.2 N acts on a 21 kg body initially at rest. Compute the work done by the force in (a)…

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Q: 1. A 60-kg patient exercises on the treadmill, exerting a constant force of 500N while running at a…

A: The work done is given by  W=T-mgsinθ-μkNdT=applied forcem=mass N=normal forced=distance…

Q: 2. If a car engine delivers 50.0 hp of power, how long will it take for the engine to do 4.60 x 10^5…

A: Power is defined as the amount of energy transferred or converted per unit time. It is also defined…

Q: A box with a mass of 3.0 kg is accelerated from rest by a constant force across a floor at a rate of…

A: A box with a mass m = 3.0 kg is accelerated from rest (intial velocity u = 0) by a constant force F…

Q: Determine the power required for a 1150-kg car to climb a 100-m-long uphill road with a slope of 30°…

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Q: F=30N 25°

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Q: A car requires 73.6 hp to maintain a constant speed of 20.4 m/s on a straight, flat road. Assuming…

A: Given data:  Power (P) = 73.6 hp Speed (v) = 20.4 m/s 1 hp = 746 W  Required: The magnitude of the…

Q: Problem 4: As a part of an exercise routine to strengthen their pectoral muscles a person stretches…

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Q: Motor-driven cable lifts a skier of 78 kg up a slope. (a) At a constant speed of 3.1 m/s, how much…

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Q: A new record for running the stairs of the Empire State Building was set on February 4, 2003. Thee…

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Q: (a) How long (in s) will it take an 865 kg car with a useful power output of 38.0 hp (1 hp = 746 W)…

A: Work energy theorem formula: W=change in kinetic energy     =∆K      =Kf-Ki      =12mvf2-12mvi2…

Q: A person in good physical condition can put out 200 W of useful power for several hours at a…

A: POWER In physics, power is the amount of energy transferred or converted per unit time. The SI unit…

Q: How long will it take a 742-kg car with a useful power output of 43.2 hp (1 hp equals 746 W) to…

A: Mass of car (M) = 742 kg  Output power of car = 43.2 hp  Power (P) = 43.2(746W) = 32227.2 W  Speed…

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: Say I lift a box from the ground straight up to 1m in 2s. If I lift the same box from the ground but…

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Q: solve number 5 with full works and steps

A: Q5) Answer:- Given:- mass of the block (m)=1.95 kg Above the ground (h) = 2.2 m so,  hf =2.20 m hi…

Q: #2

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Q: nuaie of mass 9.3 kg is pulled up a rough incline with an initial speed of 1.50 m/s. The pulling…

A: The mass of crate is given as, m = 9.3 kg The initial speed of the crate is given as, vi = 1.50 m/s…

Q: (a) A child slides down a water slide at an amusement park from an initial height h. The slide can…

A: Given, A child is sliding on a water slide

Q: A force F = 5.Oî + 16.5 ↑ - 3.7Rk N is acting on a body causes a displacement d = -49.2 - 30.9k m.…

A: Given: The force is F→=5.0i^+16.5j^-3.7k^ N. The displacement is d→=-49.2j^-30.9k^ m.

Q: A bullet with a mass of 14.5 g is accelerated along the length of a 73.5 cm long rifle barrel from…

A: The given mass of the bullet is m =14.5 = 0.0.145 kg Velocity of the bullet at the time of bullet…

Q: Construct Your Own Problem - Consider humans generating electricity by pedaling a device similar to…

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Q: A massm1​=5.3 kgrests on a frictionless table and connected by a massless string to another…

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Q: 4. A large water tank is filled by pumping water into it from a reservoir below, using electric…

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Q: An elevator has a rated capacity of 1000 kg. It can transport people at the rated capacity between…

A: Given data m=1000 kgd=5 mt=7 sec

Q: A 980 kg car travels a distance of 6.00 m uphill along a road that makes an angle of 30.0∘ with the…

A: Mass of the car m = 980 kg.Distance is given as s = 6 m.Angle is given as Accelration of the car

Q: A winch raises an object of mass 20 kg from rest with an acceleration of 0.2ms 2. How much work is…

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

Q: nd the magnitude and direction (relative to the given coordinate system) of the net electric

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Q: 1. (a) What is the average useful power output of a person who does 7.00 x 106 J of useful work in…

A: average power output is given bywhere, is the work done is the time of work done.

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

A: Solution:-Given thatInitially at rest, initial speed (u)=0final speed (v)=29 m/stime (t)=5.15 smass…

Q: A cord is used to lower vertically a block of mass Ma distance d at a constant downward acceleration…

A: Given value--- mass = M  acceleration = g/4 . We have to find--- work done by the cord on block?

Q: Pulling a cube of weight (356N) a distance (610cm) on flat ground with a constant launch after…

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Q: If W(a) and W(g) are workdone on a person by air resistance and gravity respectively, during the…

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