What is the work done through the frictional force

Assignment Help Physics
Reference no: EM13668663

A boy pulls a 20-kg box with a force of 50-N @ 37 degrees above the horizontal surface. The coefficient of kinetic friction among the box and the horizontal surface is 0.15, and the box is pulled over a distance of 25m.

A) What is the work done by the boy? B) What is the work done through the frictional force? C) What is the net work done on the box?

Reference no: EM13668663

Questions Cloud

A red laser emits photons with a wavelength : A red laser emits photons with a wavelength of 635 nm. If this laser has a power of 23 W, how many photons does it emit in 1 s? If the light emitted by the laser is absorbed with a black sail, what is the force on the sail?
Momentum of the atom after it absorbs the photon : A hydrogen atom that is initially at rest absorbs a photon with energy of 49.4 eV. What is the momentum of the atom after it absorbs the photon?
Determine what is the mass of given block : Block C has a mass of 3.0 kilogram on a flat surface. It has a block D attached by a pulley system. Determine what is the mass of D
Compute the stiffness constant of the spring : Through a fierce battle by an alien ship all power has been cut to your star ship. Only life support systems are working! your captain comes to you and asks you to design a spring launcher fixed to the star ship that will give a 12.5 kg quantum photo..
What is the work done through the frictional force : A boy pulls a 20-kg box with a force of 50-N @ 37 degrees above the horizontal surface. The coefficient of kinetic friction among the box and the horizontal surface is 0.15, and the box is pulled over a distance of 25m.
Find the average force exerted by the penny on the head : A penny has a mass of about 10 g. The penny falls from a height of 169 meter and, unfortunately lands right on the head of a man standing directly below it. Find the average force exerted by the penny on the head
Suppose the brick maintains its temperature : A brick with dimensions of 10.0cm x 10.0cmx40.0cm has an emissivity of .60 and a temperature of 46oc and is floating (via david copper field) in a 21oc room. Suppose the brick maintains its temperature (nuclear fusion in the core) how much energy doe..
Find how much kinetic energy was dissipated in collision : On a frictionless track, a 0.307 kilogram glider moving 8.92 m/s to the right collides with a 0.811 kilogram glider moving 1.55 m/s to the left. determine how much kinetic energy (in percentage form) was dissipated in the collision
A certain telescope has an objective of focal length : A certain telescope has an objective of focal length 1560 cm. If the Moon is utilized as an object, a 1.4 cm long image formed by the objective corresponds to what distance, in miles, on the Moon? Assume 3.8 multiplied by 108 m for the Earth-Moon dis..

Reviews

Write a Review

Physics Questions & Answers

  Compute the speed of each object

Two objects (m1 = 4.95 kg and m2 = 2.60 kg) are connected by a light string passing over a light, frictionless pulley suspended over a table. Determine the speed of each object when the two pass each other

  What is the rate of heat conduction through her clothing

A hiker is wearing wool clothing of 0.40 cm thickness to keep warm. Her skin temperature is 39° C and the outside temperature is 8.0° C. what is the rate of heat conduction through her clothing

  With what speed did it leave the kickers foot

A football is kicked straight up into the air; it hits the ground 5.4 s later. What was the greatest height reached with the ball? Suppose it is kicked from ground level. With what speed did it leave the kicker's foot?

  What is the final temperature of the rock-water system

If the rock falls from the cliff into a pool containing 7.00m3 of water at 16.3%u2218C, what is the final temperature of the rock-water system

  Find the total work done by wall on the rocket/coyote system

Wiley Coyote and his Acme rocket, together having inertia of 1000kg, are speeding after roadrunner. find the total work done by the wall on the rocket/coyote system

  How far should the crew fly to go directly to the field use

a plane leaves seattle flies 75.0rm mi at 22.0circ north of east and then changes direction to 55.0circ south of east.

  What is the period of the orbit

For a satellite to be in a circular orbit 800km above the surface of the earth, what orbital speed must it be given, What is the period of the orbit

  Calculate the unknown capacitance

An isolated capacitor of unknown capacitance has been charged to a potential difference of 119 V. Calculate the unknown capacitance

  Find how fast is car traveling when it overtakes the truck

At the instant the traffic light turns green, a car that hasbeen waiting at an intersection starts ahead with a constantacceleration of 3.55 m/s^2. How fast is the car traveling when it overtakes the truck

  Illustrate what constant acceleration does mary now need

Illustrate what constant acceleration does Mary now need during the remaining portion of the race, if she wishes to cross the finish line side-by-side with Sally?

  Two protons are placed at a 505 cm above and below the x

two protons are placed at a 5.05 cm above and below the x axis at x 0 as shown in the figure. an electron is placed

  What is the final impact velocity of the boulder

A large boulder rests on a cliff 500 m above a small village in such a position that, if it should slide off, What is the final impact velocity of the boulder

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd