Find the net work done on the block

Assignment Help Physics
Reference no: EM13321283

A 5kg block initially at rest is pulled to the ight along a horizontal surface by a constant, force of 30N acting at 53 degrees above the horizontal. The coeffcient of kinetic friction is 0.2. The acceleration of gravity is 10 m/s^2

a) Find the speed of the block after it has moved 3.0m (I know this answer it is v=3.23 m/s)

b) Find the net work done on the block.

Reference no: EM13321283

Questions Cloud

Global negative t-bill rates : This is an extremely unusual event because no other country in the world has seen negative interest rates during the last fifty years. How could this happen?
Cbf is a small manufacturer who makes circuit boards : CBF is a small manufacturer who makes circuit boards
Find the rate at which the electric field changes : Determine the rate at which the electric field changes between the round plates of a capacitor, 5.6 cm in diameter
Determine maximum tensile and compressive bending stresses : A rectangular tube has an outside dimensions that are 2in wide and 4in deep and a wall thickness of 0.25in. The tube is acted on by a bending moment of 12,000lb-in.
Find the net work done on the block : A 5kg block initially at rest is pulled to the ight along a horizontal surface by a constant, force of 30N acting at 53 degrees above the horizontal. Find the net work done on the block
What is the present value of $250 to be paid in two years if : As an example of how the present value concept can be used, let s assume that you just hit the $20 million jackpot in a lottery, which promises you a payment of $1 million for the next twenty years. You are clearly excited, but have you really won $2..
Explain the difference between materials considered to have : Explain the difference between materials considered to have "homogeneous" and "isotropic" material properties. Give examples of materials that are considered isotropic
Determine size of proportioning pump to feed ferric chloride : Determine the size (liters/hour) of a proportioning pump to feed ferric chloride for a 0.438 m^3/s water treatment plant. The optimum dose selected is 50 mg/L.
What was the mass of the piece of iron : If a piece of irion (c=450 J/ kg C) at 65 C is dropped into 0.250 kg of ethyl acohol at 25 C and the final temperature of the two comes to 35 C what was the mass of the piece of iron

Reviews

Write a Review

 

Physics Questions & Answers

  Determine the torsional spring constant of the wire

A circular disc of mass 10 kg is suspended by a wire attached to its centre. Determine the torsional spring constant of the wire

  Determine the angular size of the image

The near point of a naked eye is 32 cm. When an object is placed at the near point and viewed by the naked eye, Determine the angular size of the image

  What is the mass per unit length of the string

Tension is maintained in a string. The observed wave speed is 25 m/s when the suspended mass is 3.0 kg. (a) What is the mass per unit length of the string? (b) What is the wave speed when the suspended mass is 1.7 kg?

  What is the acceleration of two falling sky divers

What is the acceleration of two falling sky divers.

  How far from the van is the object actually located

The owner of a van installs a rear-window lens that has a focal length of -0.340 m. When the owner looks out through the lens at an object located directly behind the van, How far from the van is the object actually located

  Explain what will appear on the screen

In a darkened room we place a lighted tungsten bulb in a box that has one end covered with tinfoil. If we make a pinhole in the tinfoil, an image of filament appears on a screen facing the tinfoil.

  What is the current density in the wire

An iron wire with a diameter of 1.2 mm has a uniform electric field of 0.35 V/m imposed along its entire length. What is the current density in the wire

  What is the force required to launch the aircraft

An aircraft weighing 819 N is accelerated at 11.7 m/s2 for 5 seconds, at which time the aircraft launches. What is the force required to launch the aircraft

  How many electrons has the filament lost

The concept of thermionic emission is the basis of modern X-ray tubes, which are the workhorse of a medical X-ray image. How many electrons, ne, has the filament lost

  What dose equivalent does the patient recieve

A 75 kg patient swallows a 30 micro Ci beta emitter wtih a half life of 5 days. The beta partiles are emitted with an average energy of .35MeV. What dose equivalent does the patient recieve

  Determine the final volume of the system

2.00 mole of an ideal gas at 330k, 3.50 atm and 3.0L are isothermically compressed causing a change of entropy in the system equal to -25.0 J*K^-1. determine the final volume of the system

  With what speed does she exit the slide

A child slides down a playground slide; the coefficient of the kinetic friction is uk=0.15, with what speed does she exit the slide

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