force of 30 N will stretch an elastic cord 250 mm. If the force required to stretch the cord varies directly as the deformation, what is the work done in stretching the cord 1500 mm? Show solution. Answer is 135 N.m

Q: 5. A box of mass 6.80 kg is pulled from rest up a 46.0 m long incline that makes an angle of 20.0°…

A: mass = m = 6.8 kgdisplacement = 46 mfinal speed = V = 4.35 m/sinitial speed = V0 = 0 m/s

Q: 6. A 25.0 kg object is accelerated from rest through a distance of 6.0 m in 4.0 s across a level…

A: Work done in moving an object is given by,W= F×d×cosθ......(1)where, F is force applied…

Q: joel is performing a leg curl. To raise the weight, he exerts a vertical force of 1500 N of force to…

A:

Q: A boy pulls a 30.0-kg box with a 130-N force at 33° above a horizontal surface. If the coefficient…

A: Given:- The mass of the box m = 30 kg  pulling force F = 130 N at 33o above a horizontal surface…

Q: A constant force of 20 N is applied to an object of mass 8.0 kg at an angle of 25° with the…

A: Given data:  Force (F) = 20 N Angle (θ) = 25° Displacement (d) = 2.0 m Required: Work done (W)

Q: 1. A farmer pulls a cart with a force of 40 N for 15 m. If the farmer pulls the rope attached to the…

A: Given data:  Force (F) = 40 N Distance (d) = 15 m Angle (θ) = 30° Required: The work done (W)

Q: A spring of force constant 285.0 N/mN/m and unstretched length 0.220 mm is stretched by two forces,…

A:

Q: a. You push a couch across the floor, pushing with a force of 282.5 N horizontally. It slides…

A: GivenApplied force, F=282.5 NDistance , d=1.47 m

Q: A 65.0-kg file cabinet of is sliding down a rough ramp for a distance of 5.00 m as shown. The…

A: Given data The mass of the file cabinet is given as m = 65 kg. The distance traveled by the cabinet…

Q: A block with a mass of 43.0 kg is pushed with a horizontal force of 150 N. The block moves at a…

A:

Q: 4. A 128.0-N box is pulled up a frictionless ramp inclined at 30° from the horizontal at a distance…

A:

Q: A 4.20-kg box has an acceleration of 2.10 m/s² when it is pulled by a horizontal force across a…

A: " As per our company policy we can answer only 3 subparts. To get the solution of remaining part…

Q: You are working at a factory. You put a carton (box) with a mass of 2.5 kg on a 1.5-m frictionless…

A:

Q: Why is it tiring to push hard against a solid wall even if no work is done? A 75 kg firefighter…

A: Q 1) We get tired because we use our energy to contract the muscles. We try to push the wall using…

Q: 1. A spring with a natural length of 10 cm is stretched by 0.5 cm by a 12 Newton force. Find the…

A: Answer Given data Natural length l = 10 cm Force F = 12 N Spring stretched by x = 0.5 cm

Q: A child pulls a sled with constant speed pulling the rope at an angle of 30° to the horizontal and…

A:

Q: 1.A person is pushing a box across a floor. Can the frictional force on the box ever exceed its own…

A: We are authorized to answer one problem at a time, since you have not mentioned which one you are…

Q: A trunk of mass m = 2.0 kg is pushed a distance d = 158 cm up an incline with an angl of inclination…

A:

Q: A typical muscle fiber is 2.0 cm long and has a cross-section area of 3.1 x 10-9 m2. When the muscle…

A: The expression for the work done by the muscle fiber is given by, W=F∆L The value for the change in…

Q: A girl on skateboard (total mass of 50.6 kg) is moving at 14 m/s at the bottom of a long ramp. The…

A:

Q: A small pail is filled with sand with a mass of 675 grams that hangs in a makeshift crane at the end…

A:

Q: How much work is done when you push a crate horizontally with 120 NN across a 11-mm factory floor?…

A: The work done is given by  W  F x d  where, F is the force in the direction of  displacement and d…

Q: Displacement F F EN2 N1 12

A:

Q: 8. A boy pulls a 22.0-kg box with a 110-N force at 38° above a horizontal surface. If the…

A: 8.The work done by the boy is,

Q: How much work was done by a machine that exerts a 5000 N force to compress a 10-meter-long steel bar…

A:

Q: 1. A 500 – N box is pushed across a horizontal floor with a force of 250 N. The coefficient of…

A: Given: N=mg=500 kg (N is the reaction force) Force, F=250 N Co-efficient of kinetic friction, μ=.40…

Q: 7. A 1650 kg car accelerates up a hill by applying a force of 4.61 x 10³ N parallel to the hill. The…

A:

Q: 28. Ssscalar. A box of mass 20.0 [kg] slides down from the top of a surface inclined at 50.0° with…

A: mass = 20 kg θ = 50oh = 10 m μk = 0.35

Q: You push a 67 kg box across a floor where the coefficient of kinetic friction is uk = 0.55. The…

A: A) P = F*V  = mue_k*m*g*V  = 0.55*67*9.8*0.50  = 180.5 Watts

Q: A 65.0-kg file cabinet of is sliding down a rough ramp for a distance of 5.00 m as shown. The…

A:

Q: 65.0-kg file cabinet of is sliding down a rough ramp for a distance of 5.00 m as shown. The friction…

A: Given  Mass of cabinet, M = 65 kg  Distance ,d = 5.0 m  Friction force,,f = 75.0 N  g = 10.0 m/s2…

Q: Mr. Mangan pushes a 90 kg box across a rough surface with a force of 300 N over a displacement of 5…

A:

Q: ile cabinet of is sliding down a rough ramp for a distance of 5.00 m as shown. The friction force on…

A: Given:- The mass of the cabinet is m = 65 kg  cabinet of is sliding down a rough ramp for a distance…

Q: A force of 5 N is required to hold a giant spring stretched 1 m beyond its natural length. How much…

A: