2) a 1550-kg car moving at a constant speed of (900 km/hr) Its takes (16,000W)to keep it on alevel road.How much power is required to keep the car moving at the same speed up a hill inclined at an angle of 35° with horizontal?

Q: A shopper in a supermarket pushes a trolley with a force of 40N directed at an angle of 35° downward…

A: Work-done by a force F over displacement 'd' is given by: W = F.d W = F*d*cos theta Given that: F =…

Q: How much power is needed to uniformly accelerate a 1000-kg test car from 30 kph to 70 kph as it…

A:

Q: A weight lifter holds 900 N (about 200 lb) over his head. Is he doing work on the weights? Did he do…

A: While the weight lifter is holding the weight over his head, he is not doing any work, because there…

Q: Calculate the power output needed for a 950-kg car to climb a 2.00° slope at a constant 30.0 m/s…

A:

Q: Calculate the work done by a 4.0-N force (directed at a 35° angle to the vertical) to move a…

A: Given data:  Force (F) = 4.0 N Angle (θ) = 35°, with vertical Horizontal displacement (d) = 378 cm =…

Q: Using energy considerations, calculate the average force a 60.0-kg sprinter exerts backward on the…

A:

Q: 4) How many watts of power does a man with a weight of 600.0 N have when he climbs a flight of…

A:

Q: 4.  A constant force of 47.9 N, directed at 34.7° from horizontal, pulls a mass of 13.7 kg…

A: Diagram Given, Constant Force, F=47.9 N Mass, m=13.7kg Horizontal Distance, d=3.41m So, the…

Q: Using energy considerations, calculate the average force a 60.0-kg sprinter exerts backward on the…

A: Write the given values of this problem: m=60 kginitial velocity(vi)=2 m/sFinal velocity(vf)=8…

Q: How can the total energy remain the same,but the energy available to do work decrease?

A: The system's total energy is conserved means that that the energy can not be created or destroyed.…

Q: A man pushes a lawn mower on a level lawn with a force of 200 N. If 31% of this force is directed…

A: Given: The force F = 200 N. The power P = 63 W. The distance d = 4.7 m.

Q: A lawn mower is pushed a distance of 200 ft along a horizontal path by a constant force of 45 lb.…

A: Distance (d) = 200 ft Force (F) = 45 lb Angle (θ) = 30 degree

Q: Q.7. A crane lifts a load of 6000N through a vertical distance of 15m in 30s. Find the average…

A: Write the formula for the work done.

Q: A 1000-kg car travels with the horizontal at 20 m/s. Find the cruising kilowatt power required,…

A:

Q: 18.) How much work can be done if a 30ON force is applied at an dngle of 60o to the horizontal to…

A: Given Force F = 300 N Angle θ = 60° Mass of barrel M = 30 kg Distance S = 7 m

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: How much work is done on a lawnmower by a person if they exert a constant force of 75.0 N at an…

A:

Q: 8. Find the work done on a lagage of 50 kg. pulled by a string elevated at 45 degrees by a force of…

A:

Q: Calculate the power output needed for a 950-kg car to climb a 2.00º slope at a constant 30.0 m/s…

A: given mass, m = 950 kg f =  600 N  angle, A = 2 degree  v = 30 m/s

Q: A man pushes a lawn mower on a level lawn with a force of 200N. If only 60% of the totalapplied…

A: Given information: The force on the lawn rover (F) = 200 N The fraction of force used in the…

Q: Calculate the work required to be done to stop a car of 1500 kg moving at a velocity of 60 km/h?

A: m = 1500 kg  v = 60 km/h = (60 *518)m/sec v = 16.66 m/sec

Q: The handle of a vegetable wagon makes an angle of 35.0° with the horizontal. If the peddler exerts a…

A: Given data:  Angle (θ) = 35° Force (F) = 35.0 lb Displacement (d) = 1.20 mi

Q: The locomotive of a freight train exerts a constant force of 60,000N on the train while drawing it…

A: work done by a force F for a distance of r along the force applied is given by W=Fr

Q: Calculate the power output in watts and horsepower of a shot-putter who takes 1.20 s to accelerate…

A:

Q: If it takes 6.00 J of work to stretch a Hooke's-law spring 15.0 cm from its unstressed length,…

A: Given Data: Work Done to stretch spring from unstressed length to 15 cm = 6 Joule We have to find…

Q: A 0.3-kg ball is thrown with a speed of 10.3 m/s at an angle 32.5 degrees. How high does it go? To…

A:

Q: A ship with a displacement of 20,000 T accelerates from 14 knots to 17 knots over a period of 30…

A: Given that Weight of the ship  m = 20000 Tm = (20000×103 kg)m =2×107 kg Initial speed is u = 14…

Q: 6) Calculate the work done by a man who exerts a force of 10N at an angle of 40 degrees below the…

A: force = F = 10 N Angle = θ= 40 degrees below horizontal displacement = S = 15 m work= ?

Q: In climbing up a rope, a 62-kg athlete climbs a vertical distance of 5.0 m in 9.0 s. What minimum…

A: Given Data: The mass of an athlete is m=62 kg The vertical distance is, d=5 m The time required to…

Q: A rightward force of 4.0 N is exerted upon a 2.0-kg object for a distance of 3.0 meters. What is the…

A: Given information: The mass of the object (m) = 2.0 kg The Force acted on the object (F) = 4.0 N The…

Q: A 110-kg person climbs some stairs at a constant rate, gaining 2.8 meters in height. Find the work…

A: The person is doing work against gravityThe Mass of person = m = 110 kgHeight accomplished = h = 2.8…

Q: How much work does gravity do on a 0.140-kg ball falling from a height of 23.0 m? (Neglect air…

A: Work done formula is as follows; W=Fgd…

Q: A shipping clerk pushes a heavy package across the floor. Heapplies a force of 64 pounds in a…

A:

Q: If you pushed a cart for 3.34 meters along an incline of angle 11.51 by applying a force of 29.67…

A:

Q: Suppose the mass of a loaded elevator is 1700 kg.What force, in newtons, must be supplied by the…

A: Given mass of a loaded elevator is 1700 kg We have to find What force, in newtons,much work, in…

Q: You must exert a force of 6.5 N on a book to slide it across a table. if you do 13 J of work in the…

A:

Q: a 4.5 kg sled is pulled across a level snow with a force of 225N on a rope that is 35° above the…

A: Given data The mass of the sled is given as m = 4.5 kg. The force applied is given as F = 225 N.…

Q: Calculate the work done (in J) on a 1550 kg elevator car by its cable to lift it 37.5 m at a…

A:

Q: A shopper in a supermarket pushes a trolley with a force of 40N directed at an angle of 35° downward…

A:

Q: A shopper in a supermarket pushes a trolley with a force of 40N directed at an angle of 35° downward…

A:

Q: A ship with a displacement of 20,000 T accelerates from 14 knots to 17 knots over a period of 30…

A: Given Data: Mass of ship, M=20,000 T=18143695 kg or 1.81×107Kg Initial velocity, u=14 knots=7.196…

Q: Calculate the work done on a 1500-kg elevator car by its cable to lift it 50.0 m up at constant…

A:

Q: While cruising along a level ground in a one horse open sleigh at 4.0 m/s, Santa cracks the whip and…

A:

Q: A store manager pushes a 10 g box with a force of 25 N and drected at an angle of 37 above the…

A:

Q: How much work does gravity do on a 0.190-kg ball falling from a height of 15.0 m? (Neglect air…

A: Consider the mass of the ball be m, the weight of the ball be w, and height or distance of the ball…

Q: If the frictional resistance at any velocity is 45 N/ton, and if the change in speed is accomplished…

A: