certain 1200kg car can accelerate from rest to a speed of 25m/s ina time of 8.00s. What average power must the motor produce to cause this acceleration? Ignore friction losses.

Q: A 710 kg car drives at a constant speed of 23 m/s. It is subject to a drag force of 500 N. What…

A: Given,mass of the car, m = 710 kgspeed of the car, v = 23 msdrag force, F = 500 Nslope of the…

Q: a 75 kg cross country skier is climbing a 3 degree slope at a constant speed of 2.0 m/s and…

A: The mass m=75kg  The speed =2.0m/s To find the final velocity on the level ground

Q: When 150 J of work is done on a system by and external force of 15 N in 20. seconds, the total…

A: The work done on the system is 150 J by the external force force of 15 N is 20 sec.

Q: A certain automobile having mass 1000 kg climbs an inclined road with a constant 32 m/s speed. If…

A: Mass of the car is m = 1000 kg velocity of the car is is v = 32 m/s Angle of inclination of the road…

Q: A car of mass 1200 kg travels along a horizontal road at a speed of 10 ms'. At the time it begins to…

A: GIVEN THAT    m =  1200 kg      speed = 10 m/s      acceleration = 0.2 m/s2    resistive force = 160…

Q: A tower crane has a hoist motor rated at  167 hp . If the crane is limited to using  66.0%  of its…

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Q: A 450 kg dragster accelerates from rest to a final speed of 120 m/s in 400 m (about a quarter of a…

A: mass of dragster = 450 kg Initial velocity = 0 m/s final velocity = 120 m/s distance moved = 400 m…

Q: Football players measure their acceleration by seeing how fast they can sprint 40 yards (37 m). A…

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Q: What average power is needed to lift a 65-kg vendor vertically upward at a uniform speed of 0.44…

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Q: An accelerating object of mass m=7 kg is fired with an initial speed v;=8 m/s at a starting point.…

A: Given: mass of object m = 7 Kg initial speed vi = 8m/s Final kinetic energy KEf = 369 J To find:…

Q: I have a motor that is rated for 6000 W. What is the maximum amount of work that the motor can do in…

A: Given data The power of the motor is P = 6000 W The time taken to work is t = 10 s The mass of the…

Q: An advertisement claims that a certain 1,200-kg car can accelerate from rest to a speed of 25 m/s in…

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Q: A small boat is crossing a lake on a windy day. During some interval of time, the boat undergoes the…

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Q: If a car generates 17.3 hp when traveling at a steady 81.3 km/hr, what must be the average force…

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Q: How much power is required to lift a heavy solid concrete beam with mass 60.21 kg upward with a…

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Q: A 710 kg car is moving on level ground at a constant speed of 23 m/s. It is subject to a drag force…

A: Given data:  Force (F) = 500 N Speed (v) = 23 m/s Required: The power (P)

Q: A 65 kg mountain climber climbs through a vertical rope at a constant acceleration from rest to a…

A: Given,  Mass = 65 kg t = 10 s v = 1.25 m/s u = 0 a = (v-u)/t = 1.25/10 = 0.125 m/s2

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: Water flows over a section of Niagara Falls at a rate of 1.4 × 106 kg/s and falls 60 m. What is the…

A: Given: The rate of mass of the water=dmdt=1.4×106 kg/s. The height of the fall=h=60 m Acceleration…

Q: The box has a mass of 50 kg and is at rest. When it is pulled with 1000 N it reaches speed of 5m/s.…

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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: You drag your 30 kg suitcase 1200 m thru the Chicago airport at essentially constant velocity 2.0…

A: Given: Mass, M = 30kg Distance , s= 1200m Velocity, v = 2.0m/s Force, F = 90N, 20o westward

Q: A force of 3.3 N acts on a 24 kg body initially at rest. Compute the work done by the force in (a)…

A: Part D) The instantaneous power at the end of third second is    P=Wt   =1.13 J3 s    =0.377 W

Q: What average power is needed to lift a 65-kg vendor vertically upward at a uniform speed of 0.44…

A: Given: The mass (m) of the vendor is 65 Kg. The uniform velocity (v) of the vendor is 0.44 m/s.…

Q: Suppose a 975-kg car can produce a useful power output of 42.5 hp (1 hp = 746 W). How long, in…

A: Data Given ,  Mass of the car ( m ) = 975 kg Power of the car ( P ) = 42.5 hp   = ( 42.5 × 746 ) W =…

Q: A car's engine generates 80000 W of power as it exerts a force of 6000 N. How long does it take the…

A: Given: The power of the engine is 80000 W. The force exerted by the engine is 6000 N. The…

Q: Q.2 A 1.00 x 10*3 kg elevator car carries a maximum load of 8.00 x 10*2 kg. A constant frictional…

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Q: An electric motor with an output of 15kW provides power for the elevator of a six storey building.…

A: The work done by the motor is, W=F×d                                       F=mg,d=displacement…

Q: A bicyclist starting from rest applies a force of F = 239 N to ride his bicycle across flat ground…

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Q: A car accelerates uniformly from rest to 24.2 m/s in 8.46 s along a level stretch of road. Ignoring…

A: The initial velocity of car = 0 m/s.The final velocity = 24.2 m/s.The time taken  by the car to…

Q: The aircraft carrier USS George Washington has mass 1.0 ×108kg. When its engines are developing…

A: Let Pout be the total power output of the engines, P is the power used to push the ship through the…

Q: 50.0kg marathon runner runs up the stairs to the top of a 443m tall tower. To lift herself to the…

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Q: In the figure here, a block of ice slides down a frictionless ramp at angle 0=56.0 ° while an ice…

A: Given data: Angle, θ=56.00 Magnitude of force, F=58.0 N Distance along the ramp, d=0.410 m Increase…

Q: What average mechanical power (in W) must a 70.5 kg mountain climber generate to climb to the summit…

A: Write the given values with suitable variables. m=70.5 kgh=305 mt=47 min=47×60 s=2820 s Here, m, h,…

Q: A cheetah can accelerate from rest to 7.4 m/s (about 18 m/h) in 1.8 seconds. How much average power…

A: initially at rest, u=0 msfinal velocity, v=7.4 mstime, t=1.8 smass, m=51 kg

Q: A 700 kg dragster accelerates from rest to a final speed of 120 m/s in 400 m (about a quarter of a…

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Q: Starting from rest at t = 0, a 5.0-kg block is pulled across a horizontal surface by a constant…

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Q: A force →F=(9.10N)ˆi+(3.10N)ˆj+(8.70N)ˆk acts on a 5.00 kg mobile object that moves from an initial…

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Q: A machine carries a 3.5 kg package from an initial position of d, = (0.50 m)i + (0.75 m)j + (0.20…

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Q: If a car (m = 1200 kg) generates 18 hp when traveling at a steady 90 km/h, what must be the combined…

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Q: A new car model claims that a certain 1600 kg car can accelerate from rest to a speed of 25m/s in a…

A: Given  Mass of car, m = 1600 kg  Accelerates from rest at speed of 25 m/s in time 10 sec

Q: In the figure here, a block of ice slides down a frictionless ramp at angle 6=52.0 ° while an ice…

A: Analyze the following diagram. When the worker was pulling the ice block, there are two forces…

Q: A 1.50 x 10^3 kg car starts from rest and accelerates uniformly to 18.0 m/s in 12.0 s. Assume that…

A: Average power = network done / time                           = total change in kinetic energy /time