spring has a natural length of 15 ft. A force of 300 lb compresses the spring to 12 ft. Find the work done in compressing the spring from 13 ft to 10 ft.

Q: A 4.4-kg block is pushed 3.5 m up a vertical wall with constant speed by a constant force of…

A: Given information:Mass of the block (m) = 4.4 kgCoefficient of friction between the block and the…

Q: Find the work applied in this problem: A box pulled by a cord at a 25° from the horizontal with 2700…

A: The total work has to be done to pull the box by the cord.

Q: (a) What is the average useful power output (in W) of a person who does 5.00 x 106 J of useful work…

A:

Q: A rock of mass 0.050 kg is thrown upward with an initial speed of 25 m/s. Find the work done by…

A: Given data: Mass of rock is, m=0.050 kg. Initial speed of throwing the rock is, u=25 m/s.

Q: how much more work will be required to stretch it an additional 4.0 cm?

A:

Q: A 2.0 kg box is raised from rest a distance of 5.0 m by a vertical force of 130 N. Find the work…

A: Given data:  Mass (m) = 2.0 kg Height (h) = 5.0 m Force (F) = 130 N Required: Work done (W)

Q: a force F=(3x4-5) N acts on a body movin in 1D in x direction from the point x=0 to x=4 . find the…

A:

Q: of work. Assuming that you weigh 800 N, how high could the engine lift you?

A:

Q: A power mower does 8 x 104 J of work in 0.4 h. What power does it use?

A: Work done, W = 8 x 104 J = 80000 J Time taken, t = 0.4 h = 0.4 x 3600 s = 1440 s   Power of the…

Q: What would be the power output (in-hp) of a 1750kg car if it can acend to the top of a 285m high…

A: The expression of work- energy theorem,

Q: If it takes 5.00 J of work to stretch a Hooke’s-law spring 10.0 cm from its unstressed length,…

A: Given that, The work done to stretch a spring 10 cm from its unstressed length is 5 J. We need to…

Q: It takes a force of 35.17 Newtons to stretch a 34-cm spring to 81-cm and hold it there. How much was…

A:

Q: A boy pulls a sled with a force of 10 lb for 100 ft. The rope attached to the sled is at an angle of…

A: Given: force applied by boy, F = 10 lb = 10(4.44822) = 44.4822 N  (since 1 lb force = 4.44822 N)…

Q: The work required to stretch a certain spring from an elongation of 4.00 cm to an elongation of 5.00…

A:

Q: Four joules of work is required to stretch a spring 0.5 meter from its natural length. Find the work…

A:

Q: Calculate the work done by a 40 N force pushing a 0.5 kg toy 2.3 m.

A:

Q: It takes 18 foot-pounds of work to stretch a spring 4 inches from its natural length. Find the work…

A: Work done to stretch a spring is given by : W = (1/2) (K)(∆x)2 Where k is the spring constant…

Q: If it takes 5.00 J of work to stretch a Hooke's-law spring 10.0 cm from its unstressed length,…

A: Given,

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 10 ft chain weighs 75 lb and hangs from a ceiling. Find the work done (in ft-lb) in lifting the…

A:

Q: A box is pulled with a force of 60 N to produce a displacement of 13 m. If the angle between the…

A: Given, Force F = 60 N Displacement d = 13 m Angle θ = 20 degree

Q: F2 = 20 N F1 = 40 N 30° ----- 30° F3 = 50 N

A:

Q: It takes a force of 28.22 Newtons to stretch a 49-cm spring to 117-cm and hold it there. How much…

A: Given Required force is F=28.22 N Initial length of the spring is l0=49 cm=0.49 m Final length of…

Q: Calculate the work done A car of weight 20000N climbs up a hill at8m/s speed. Gaining a height of…

A: Given : velocity=8m/s Weight = 20,000 N height=120 m time=100s g=10 m/s² Weight = mg Mass =…

Q: The work required to stretch a certain spring from an elongation of 4.00 cm to an elongation of 5.00…

A: Given data: Elongation of length x1=4.00 cm                                  x2=5.00 cm Energy =11J…

Q: A force of 90N is required to keep a spring stretched 5m from the equilibrium position. How much…

A:

Q: How much power is required to lift a heavy solid concrete beam with mass 101.87 kg upward with a…

A: Given: The mass of the beam is 101.87 kg. The constant speed is 573 m/s.

Q: leration, if the effec ures.

A: Given: Mass of crate is 45 Kg Distance is 10.1 m Friction coefficient is 0.6

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

A:

Q: IF A FORCE OF 80 lb STRETCHES A 12ft SHRInk Ift. FIND THE word DONE IN STRETCHING T a) PROM 1zto…

A: Given, F=80 lb x= 1ft

Q: A 10 ft chain weighs 45lb and hangs from a ceiling. Find the work done (in ft-lb) in lifting the…

A:

Q: Calculate the work performed by a horse pulling a wagon forward with 150 N of force, across a bridge…

A: Force applied by the horse (F) = 150 N Length of bridge (L) = 50 m Mass of horse (M) = 50 kg

Q: How much work did the movers do (horizontally) pushing a 46.0-kg crate 10.6 m across a rough floor…

A: Given- Mass of crate (m) = 46 Kg Distance (d) = 10.6 m Coefficient of friction (μ) = 0.50

Q: A force of 4 pounds is needed to stretch a spring 2 inches from its natural unstretched and…

A: Force, F = 4 pounds = 17.79 N Extension, x = 2 inches = 0.0508 m Change in length, ∆x = (15 - 10)…

Q: A mass of 3.50kg is pushed through a distance of 10.8m along a frictionless table by a constant…

A: The work done by the force can be expressed as W=F·d

Q: Calculate the work done if a 60 kg block of ice is pulled across a smooth surface using a chain 25º…

A: