Consider a 1200-kg car cruising steadily on a level road at 90 km/h. Now the car starts climbing a hill that is sloped 30° from the horizontal. If the velocity of the car is to remain constant during climbing, determine the additional power that must be delivered by the engine.

Q: A box of mass m = 2 kg is kicked on a rough horizontal plane with an initial velocity v_O. If the…

A: Work energy theorem  It states that work done is equal to the change in kinetic energy.  W= ∆K.E

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: Consider a system of an 85.0 kg man, his 19.5-kg dog, and the earth. The gravitational potential…

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Q: our students of average mass 80 kg each are raised by the elevator in the ESB building, with the…

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

A: The work done by the applied force,

Q: A person uses a motorized bicycle to climb a road inclined 30 ° above the horizontal with constant…

A: Mass of the person +bicycle M=102 kg Angle of inclination θ=300 Displacement of the person d=86 m…

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: Suppose that as part of their training, the football players of MSU went up a stair in 66 s. The…

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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: In the figure below, a block of ice slides down a frictionless ramp at angle e = 50° while an ice…

A: Here F = 30N D = 0.43m Here we will calculate work done by the rope

Q: certain 1200kg car can accelerate from rest to a speed of 25m/s ina time of 8.00s. What average…

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Q: An Olympic swimmer stands on top of a platform at a height H above a swimming pool. At the moment of…

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Q: A pendulum is constructed by attaching a small metal ball to one end of a string of length L = 1.45…

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Q: A truck of mass 900 kg starts with an initial velocity of 2.00 m/s and travels in a straight line…

A: Mass of the truck,

Q: When a father takes his daughter out for a spin in a stroller, he exerts a force F>with a…

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Q: It takes a force of 1450 N to keep a 1300-kg car moving with constant speed up a slope of5.25°. If…

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Q: A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.850 m/s encounters a rough horizontal…

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Q: We would like to place 300 m long ski lift which moves with a towing speed of 12 km/h, on a steep…

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Q: Using the work and energy relations, solve for the constant force "P" required for a system…

A: The work energy theorem states that the work done by the system of forces is equal to the change in…

Q: A bird of mass m = 2kg flies at a height h = 10 m from the ground with a constant horizontal speed v…

A: The mass of the bird, m=2 kg   The height, h=10 m   The horizontal speed, v=10 m/s

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

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Q: A horizontal force of 5 N is required to maintain a velocity of 2 m/s for a block of 10 kg mass…

A: Given data : Force=F Mass=m time=t Velocity=V   TO FIND : Work done

Q: Same skier as in the previous question When she reaches the jump, she is launched at an angle of 45°…

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Q: The drawing shows a boat being pulled by two locomotives through a canal of length 3.50 km. The…

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Q: A particle of mass 0.4 kg moves a long a straight line according to x(t) = 2t + t3, where t is in…

A: Power is defined as time derivative of the work done on a system, or work done per unit time. Work…

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: To pass a slow-moving truck, you want your fancy 1.30 * 103@kg car to accelerate from 13.4 m>s…

A: Let E1 and E2 denote the initial and final kinetic energy of the car, E denote the change in kinetic…

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: Given: A shooting guard throws a basketball m = 1 kg straight up with an initial speed of v0 = 5.5…

A: Given - m=1kg vo=5.5m/s  ho= 1.95m Gravitational potential energy be zero at ground

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: An object with a mass of 3 kg is initially at rest on a horizontal floor. It is then pushed in a…

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Q: Q.2 A- A 0.750 x 10**3 kg elevator car carries a maximum load of 7.500 x 10**2 kg. A constant…

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Q: Suppose that as part of their training, the football players of Luzon went up a stair in 66 s.…

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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…

A:

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

A: The expression for the average mechanical power (P) is,

Q: An Olympic swimmer stands on top of a platform at a height H above a swimming pool. At the moment of…

A:

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: The power delivered by a constant  force is given by P=F⃗·v⃗,  The power exerted by gravity as it…

A: The power delivered by the force is given by,

Q: A machine carries a 4.5 kg package from an initial position of d, - (0.50 m)î + (0.75 m)î + (0.20…

A: The work done by a force to move a body by a certain distance is given by W = F.s, where F = the…

Q: Suppose a 825-kg car can produce a useful power output of 45.5 hp (1 hp = 746 W). How long, in…

A:

Q: A student wearing frictionless roller skates on a horizontal surface is pushed by a friend with a…

A: Given: Initial velocity of student is 0 m/s. Force applied is 52 N. Final kinetic energy is 345 J.…