In the question given as follows, determine the work done by the constant force :-   The locomotive of a freight train pulls its cars with a constant force of 7 tons for a distance of one-quarter mile?

Q: If it takes 4.00 J of work to stretch a Hooke's-law spring 5.0 cm from its unstressed length,…

A: The work done is given by  W = 12Kx2 where,  K is the spring constant and x is the stretch length.

Q: A labourer weighing 600 N is to carry 5 sacks of rice from ground floor to the second floor of the…

A: Given  Weight of labour, W = 600 N  No of sack, N = 5  Mass of each sack ,M = 50 kg  Distance…

Q: The work done by the conservative force F = -kx = -4x to move the block from r = -0.25 m to x = 0…

A:

Q: A force F = (4xi-3y2j)Nacts on a particle, the particle moves along the x-axis from x= 1 to x = 4m.…

A: Write the expression of the force vector on a particle.   F=4xi-3y2j   Write the expression of the…

Q: How much work did the movers do (horizontally) pushing a 160-kg crate 10.3 m across a rough floor…

A: Since the crate is moving acceleration, the pusher must do a work to overcome the frictional force.…

Q: Why do we say that the work done by coolie carrying a suitcase along a horizontal road is zero?

A: When a coolie lifts the luggage, he applies the force in the upward direction, which is against…

Q: Does the work you do on a book when you lift it onto a shelf depend on the path taken? On the time…

A: Work done

Q: Cite an example in which a force is exerted on an object without doing work on the object.

A: The work done will be zero when the applied force on an object is perpendicular to the displacement…

Q: A record for stair climbing was achieved by a man who raced up the 1600 steps of the Empire State…

A: Given data from question,  Number of steps = 1600 Height = 320m Time taken = 10.2min Weight of man =…

Q: An apple weighing 1 N falls throughas a distance of 1 m. How much work is done on the apple by the…

A: weight of apple(W)= 1N Distance(d)=1m Work done=F.d=Fdcosθ F is force θ is angle between force and…

Q: A gardener pushes a lawn roller through a distance of 20 m. If he applies a force of 196 N in a…

A:

Q: How much work is done by a 59 kg ninja watrior in climbing a ladder that is 9 meters long? Express…

A: Mass of ninja warrior (m) = 59 kg  Length of ladder (L) = 9 m

Q: how much work did the movers do (horizontally) pushing a 46.0-kg crate 10.3 m across a rough floor…

A: The expression for the required work done is,

Q: As an object moves from point A to point B only two forces act on it: one force is nonconservative…

A: The work done by non-conservative is responsible for the mechanical energy of system. When work done…

Q: A big man is towing a large box with a cord that makes an angle of 25 degreeswith the horizontal.The…

A: Force applied on box = 100 N displacement of box = 2 meter angle between force and displacement…

Q: A box is pulled with a force of 65 N to produce a displacement of 8 m. If the angle between the…

A: Given : F = 65 N d = 8 m θ = 32°

Q: When a spring is stretched , is the work done by the stretching force positive or negative?

A:

Q: How much work did the movers do (horizontally) pushing a 43.0-kg crate 10.3 m across a rough floor…

A: Given data:Mass of the crate, M = 43.0 kgDistance moved, d = 10.3 mCoefficient of friction = 0.50

Q: A box is pulled with a force of 35 N to produce a displacement of 9 m. If the angle between the…

A:

Q: Calculate the total work done on a 1550-kg car as it coasts 20.4 m down a hill with f = 5.00°. Let…

A: Let m be the mas of the car, s is the distance traveled down the hill, and θ is the inclination…

Q: A box is pulled with a force of 45 N to produce a displacement of 5 m. If the angle between the…

A: Given: The applied force is 45 N. The displacement is 5 m. The angle between displacement and the…

Q: A ball was launched upwards and vertically at a speed 3 m/s up to a height 4 m. What the work done…

A:

Q: A box is pulled with a force of 40 N to produce a displacement of 7 m. If the angle between the…

A: as per our guidelines we are supposed to answer only one question. Kindly repost other questions as…

Q: A 4000-kg elevator starts from rest accelerates uniformly to a constant speed of 2.0 m/s and…

A: The potential energy of a body is given by PE = mgh, where m = the mass of the body g = acceleration…

Q: If a person pushes on a lawnmower with a constant force of 90.0 N at an angle of 40° to the…

A: Given data: Constant force (F) = 90.0 N Angle (θ) = 40° to the horizontal Horizontal displacement…

Q: Calculate the work needed to lift a 20 kg sack of rice vertically at 6-5 m ?

A:

Q: If it requires 9.0 JJ of work to stretch a particular spring by 2.0 cmcm from its equilibrium…

A: Write the expression for the work done by the spring.

Q: How much work did the movers do (horizontally) pushing a 46.0-kg crate 10.3 m across a rough floor…

A:

Q: How much work is done by gravity when dead lifting a 100.0 kg barbell 81.54 cm from the floor to hip…

A:

Q: F = (2ry – 3)î + x²j, (0, 1) a (1, 0}

A: A force F is given and the work done in moving along three different paths a, b and c is being…

Q: Two objects are each displaced the same distance, one by a force F pushing in the direction of…

A:

Q: If 2.0 J of work is done in raising a 0.180 kg apple, how far is it lifted? (Remember: F = mg)

A: Given  Work done W=2J Mass of apple m=0.18kJ

Q: Is the work done by the applied force positive or negative when a heavy body is lowered to the…

A: Let h be the height at which the body is initially, F be the applied force, W be the work done by…

Q: If it requires 9.0 J of work to stretch a particular spring by 2.0 cm from its equilibrium length,…

A: The energy required to stretch the spring is

Q: A box is pulled with a force of 45 N to produce a displacement of 11 m. If the angle between the…

A:

Q: How high a hill can a car coast up (engine disengaged) if work done by friction is negligible and…

A: Using the conservation of energy, the kinetic energy of the car at the lowest point equals the…

Q: A baseball of mass 0.25 kg is hit at home plate with a speed of 40 m/s. When it lands in a seat in…

A: Given: Mass of the ball = 0.25 Kg Speed of the ball = 40 m/s Horizontal distance from home plate =…

Q: How much work is performed in steadily dragging a sled 20 m horizontally when the force of 80 N is…

A:

Q: . Find the work done on a lagage of 50 kg. pulled by a string elevated at 45 degrees by force of 100…

A: Given that: F=100Nθ=450d=10 mm=50 kgW=?

Q: A person pushes a lawn roller through a distance of 10 m. If he applies a force of 25 N in a…

A:

Q: Find the work done in joules by gravity as an object of the mass m=9 kg is raised up at constant…

A:

Q: Calculate the work done in pushing a 40 kg crate 12 m across a level floor if the cofficent of…

A: Mass, m=40 kg Distance to be pushed, d=12 m Coefficient of friction = 0.4

Q: An object moves from point A to point B under the influence of only two forces. Between points A and…

A: Sum of work done by all forces= change in Mechanical energy…

Q: When a conservative force does positive work on a body, the potential energy ofthe body…

A: Decreases

Q: Why does one get tired when pushing against a stationary wall when no work is done on the wall?

A: Work done can be calculated as the product of the displacement and the force applied.