A box is being pushed to the right with 112N of force. The box travels a total of 1.5m to the right.  a. What is the work done on the box from the push? b. If friction is acting on the box with 5N of force in the opposite direction, what is the work done from the friction force?

Q: A 1000 kg elephant is to be lifted 10m above the ground. a. How much workis required to lift the…

A: Dear student,                    According to the guidelines I am allowed to answer only three…

Q: A man pushes a lawn mower with a horizontal force of 138 N. If he pushes the lawn mower 5.2 m in 15…

A:

Q: a winch pulls the truck against 500N of friction and does 3000 joules of work how far did the winch…

A:

Q: Q1. A force of 7N as on an object. The displacement is, say 8 m, in the direction of the force. Let…

A: Work done on an object is given by the formula, Work done = (Force)(Displacement), where the…

Q: A 25 kg box sliding to the left across a horizontal surface is brought to a halt in a distance of 25…

A:

Q: A man pushes a lawn mower on a level lawn with a force of 270 N. If 40% of this force is directed…

A:

Q: A 156 gram ice hockey puck slows down from 45.0 m/s to 44.5 m/s as it slides 17.5 m across the…

A:

Q: A 500 kg car traveling at 55 m/s slows to 30 m/s. How much work done is done on the car in slowing…

A: Given: Mass m = 500 kg Velocity u = 55 ms Velocity v = 30 ms To determine: Force and work done.…

Q: A man lifted a 281.5-kg object through a distance of 17.1 cm using only his teeth. a. How much work…

A: a) The work done is given by,

Q: A 0.800-kg particle has a speed of 1.60 m/s at point A and kinetic energy of 7.30 J at point B. (a)…

A: (a).The kinetic energy at A is

Q: A vehicle pulls a cart horizontally with a force of 40 lbs at an angle of 30 above the horizontal…

A: Given data  Force ( F ) = 40 lb Angle ( θ ) = 30°  Speed ( v ) = 6.0 mi/h  Time ( t ) = 10 minutes…

Q: Nellie Newton does work on a box by pushing it with a constant force of 100 N over a distance of 4…

A: Assume that Nellie Newton does a work by pushing a box with a constant force F = 100 N over a…

Q: A car (1000 kg) is going 20 m/s on a level road and slams on the brakes. The skid marks are 25m…

A: If an object has mass 'm' and velocity 'v' then the kinetic energy of the object can be found using…

Q: A person pulls a toboggan for a distance of 29.6 m along the snow with a rope directed 22.1 ° above…

A:

Q: A crate of mass 10.0 kg is pulled up a rough 20o- incline. The pulling force is 100 N parallel to…

A:

Q: A 0.41-kg particle has a speed of 3.0 m/s at point A and kinetic energy of 8.0 J at point B. (a)…

A:

Q: A student who weighs 543 N climbs a stairway (vertical height of 3.3 m) in 24 s. a) how much work…

A:

Q: A crate with a mass of 47.5 kg is pushed with a horizontal force of 150 N. The crate moves at a…

A:

Q: A woman is rollerblading through a park. If she starts from rest, and then reaches a kinetic energy…

A: Since the woman is starting from rest, her initial kinetic energy will be zero. Final kinetic energy…

Q: A 0.34-kg particle has a speed of 3.0 m/s at point A and kinetic energy of 8.1 J at point B. (a)…

A: Mass of the particle m=0.34 kg Speed of the particle at point A ,vA=3.0 m/s The kinetic energy at…

Q: A sled of 150 kg mass moves along a smooth horizontal surface at 7 m/s. The sled encounters a rough…

A: Mass of sled, m = 150 kg Initial speed of sled, vo = 7 m/s Force exerted by rough spot, Frough = -…

Q: A 0.41-kg particle has a speed of 3.0 m/s at point A and kinetic energy of 8.0 J at point B. (a)…

A: (a) Calculate the kinetic energy at point A. KEA = 0.5*m*vA2          = 0.5*0.41*32       = 1.85 J

Q: 1. A crate of mass 10.0 kg is pulled up a rough 20 degrees incline. The pulling force is 100 N…

A: This is the FBD for the given system. Here, m = 10 kg θ = 200 F= 100 N µ = 0.4 d = 5 m

Q: A force of 8 N will stretch a rubber band 4 cm (0.04 m). Assuming that Hooke's law applies, how far…

A: Given data:  Force (F) = 8 N Stretch in rubber band (x) = 0.04 m Required: The stretch in rubber…

Q: A box with a mass of 37.0 kg is pushed with a horizontal force of 150 N. The box moves at a constant…

A: a)The required work done is,

Q: 10. A machine is used to move a 700 N object by 2.00 m by exerting 400 N of force through a distance…

A:

Q: A student who weighs 556 N climbs a stairway (vertical height of 4.0 m) in 25 s. (a) How much work…

A: (a) Work done is given by,  W=Fd Here, F is force and d is distance.  Given : Force which is equal…

Q: A heavy rope, 50 ft long, weighs 0.9 lb/ft and hangs over the edge of a building 140 ft high. a. How…

A: Given: Length of rope (l) = 50 ft. Weight of rope (w) = 0.9 lb/ft. Height of building (h) = 140 ft.

Q: A helicopter lifts a 65 kg astronaut 18 m vertically from the ocean by means of a cable. The…

A: F   to denote the upward force exerted by the cable on the astronaut. The force of the cable is…

Q: A force of 8 N will stretch a rubber band 4 cm (0.04 m). Assuming that Hooke's law applies, how far…

A:

Q: 1. A box with a mass of 3.0 kg is accelerated from rest by a constant force across a floor at a rate…

A:

Q: It takes a force of 825 N to push a car through terrain. Two students push the car 35 m. a. How…

A: Given data The force required to push the car is F = 825  N The distance pushed by the student is s…

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 F = 10 lb Distance travelled S = 100 ft Duration t = 45 s Angle between the…

Q: e force on a object is 50 N and it displaced

A: The force on the object is 50 N  The displacement is d = 30 cm = 0.30 m  Find:-  The work done by…

Q: A spring on a horizontal surface can be stretched and held 0.5 m from its equilibrium position with…

A: Given, Force, F=50 N, and distance, x=0.5 m.

Q: A force of 45.6 lb is used to push a box 10.3 ft across a level floor. (a) How much work was done on…

A: Given,  Force acting on the box, F = 45.6 lb Displacement of box, x = 10.3 ft For calculating work…

Q: A rope applies a horizontal force of 290 N to pull a crate a distance of 3 m across the floor. A…

A: We are allowed to give the explanation of first question only which is given below.  Please repost…

Q: Part A pu throw a 5.5 g coin straight down at 4.0 m/s om a 25-m-high bridge. How much work does…

A:

Q: 0.800-kg particle has a speed of 2.10 m/s at point  and kinetic energy of 7.80 J at point . (a)…

A:

Q: A horse pulls a cart horizontally with a force of 40 lb at an angle of 30- above the horizontal and…

A: Work is defined as dot product of force vector and displacement vector. Power is defined as dot…

Q: A donkey pulls on a wagon with 25 N of force until it completes 150 J of work how far did the donkey…

A: Given- Force applied by donkey (F) = 25 N Work (w) = 150 J

Q: You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 306…

A: It is given that,

Q: A person pulls a toboggan for a distance of 37.8 m along the snow with a rope directed 21.5 ° above…

A: Given data: A person pulls a toboggan for a distance of, d=37.8 m The direction of the rope with the…

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.