Coefficient of static friction between the block and surface

Assignment Help Physics
Reference no: EM13537009

A28.0-kg block is initially at rest on a horizontal surface. A horizontal force of 76.0N is required to set the block in motion, after which a horizontal force of57.0N is required to keep the block moving with constant speed.

(a) Find the coefficient of static friction between the block and the surface.

(b) Find the coefficient of kinetic friction between the block and the surface.

Reference no: EM13537009

Questions Cloud

Obtain the magnitude of the magnetic force acting on proton : A proton moves through a magnetic field at 20.3% of the speed of light. obtain the magnitude of the magnetic force acting on the proton
What is the current in the lightbulb : A lightbulb has a resistance of 230?when operating with a potential difference of 180V across it. What is the current in the lightbulb?
How many protons strike the target : A proton beam in an accelerator carries a current of 115µA. If the beam is incident on a target, how many protons strike the target in a period of 26.0s?
Calculate at what speed must the second ball be thrown : A ball is thrown straight upward and returns to the thrower's hand after 2.50 s in the air. At what speed must the second ball be thrown
Coefficient of static friction between the block and surface : A28.0-kg block is initially at rest on a horizontal surface. A horizontal force of 76.0N is required to set the block in motion, after which a horizontal force of57.0N is required to keep the block moving with constant speed.
Find the speed of the second puck after the collision : A hockey puck moving at 0.473 m/s collides elastically with another puck that was at rest.Find the speed of the second puck after the collision
Determine with what speed do the block of wood : A block of wood of mass 0.938 kg is initially at rest. A bullet of mass 0.0492 kg traveling at 107 m/s strikes the block and becomes embedded in it. With what speed do the block of wood
Find the recoil speed of the rifle as bullet leaves the gun : A rifle has a mass of 5.38 kg and it fires a bullet of mass 12.0 g at a muzzle speed of 827 m/s. What is the recoil speed of the rifle as the bullet leaves the gun barrel
Estimate the time it takes the ball to reach the wall : A home run is hit in such a way that the baseball just clears a wall 21 m high, located 130 m from home plate. Find the time it takes the ball to reach the wall

Reviews

Write a Review

Physics Questions & Answers

  Calculate the magnitude of vector

A carnival merry-go-round rotates about a vertical axis at a constant rate. A man standing on the edge has a constant speed of 3.26 m/s, What is the magnitude of r vector

  Calculate the level of liquids in the tubes

The ends of two thin glass tubes are stuck in the same pool of water. Although both tubes are thin, one tube has a smaller inside diameter (Tube 1) than the other (Tube 2). Both tubes are made of the same material. Would you expect the level in Tu..

  Find how much energy is the sun radiating into space

The temperature of the surface of the sun is 6000K and its radius is 696,000Km. How much energy is the sun radiating into space per second

  What would be the magnitude of magnetic field

On a frictionless table, a glob of clay of mass 0.24 kg strikes a bar of mass 1.34kg perpendicularly at a point 0.38m from the center of the bar and sticks to it. If the bar is 1.14 m long and the clay is moving.

  How many gas molecules are there in such a vacuum

An excellent laboratory vacuum has a pressure of 5.00 multiply.gif 10-18 atm, ow many gas molecules are there per cubic centimeter in such a vacuum at 290 K

  Estimate the kinetic energy of the ball

A 47.0-g golf ball is driven from the tee with an initial speed of 50.0 m/s and rises to a height of 25.6 m. Neglect air resistance and determine the kinetic energy of the ball at its highest point

  Find the maximum potential difference

The inner conductor of a coaxial cable has a radius of 0.550 mm, and the outer conductor's inside radius is 3.00 mm. What is the maximum potential difference that this cable can withstand

  Find the electric potential at the center of a hollow metal

What is the electric potential at the center of a hollow metal sphere of outside diameter 14. cm which holds a net charge of 3.3 muC

  What is the peak value of potential difference across coil

A 2.20 H coil with a resistance of 2.18×10^2 ohms is in series with a 1.29×10^3 ohms resistor. What is the peak value of the potential difference across the coil

  Find their individual masses

A 44 cm diameter loop is rotated in a uniform electric field until the position of maximum electric flux is found. The flux in this position is 5.40 x10^5 N·m2/C. What is the magnitude of the electric field.

  What power input is necessary to maintain the sphere

Using a diesel fired boiler with an efficiency of 80%.How many liters of diesel is required to create 1000kg of steam at 120degrees Celsius from make up water at 20 degrees Celsius.given that enthalpy of steam at 120 degrees Celsius is 2706.3kJ/kg..

  U-tube with constant cross section is partly filled water

A u-tube with constant cross section is partly filled with water. Engine oil of density 0.8g/cm3 is poured into the right arm (without mixing) until the water level rises 2.0cm. The length of the oil column is then.

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