A 20 N block rests on a horizontal surface The coefficients of static and kinetic friction between the surface and the block are s 0 8 and k 0 6 A horizontal string is attached to the block and a constant tension T is maintained in the string What is the force of friction acting on the block if (a) T 15 N or (b) T 20N

Question: A 20-N block rests on a horizontal surface. The coefficients of static and kinetic friction between the surface and the block are s = 0.8

A 20-N block rests on a horizontal surface. The coefficients of static and kinetic friction between the surface and the block are µs = 0.8 and µk = 0.6. A horizontal string is attached to the block and a constant tension T is maintained in the string. What is the force of friction acting on the block if

(a) T = 15 N or

(b) T=20N.

Step by Step Solution

★★★★★

3.54 Rating (161 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a s mg 15 then f f s ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

10-P-M-L-M (591).docx

120 KBs Word File

Students Have Also Explored These Related Mechanics Questions!

The coefficients of static and kinetic friction between a 50.0-kg box and a horizontal surface are 0.500 and 0.400 respectively. (a) What is the acceleration of the object if a 250-N horizontal force...

The coefficients of static and kinetic friction between the drum and brake bar are ? s? = 0.4 and ? k? = 0.3, respectively. If M = 50N ? m and P = 85 N determine the horizontal and vertical...

Suppose the coefficients of static and kinetic friction between the crate and the truck bed are 0.415 and 0.382, respectively. (a) Does the crate begin to slide at a tilt angle that is greater than,...

1 1 % ) Problem 7 : A spring with a spring constant of k = 1 7 7 N / m is initially compressed by block a distance d = 0 . 2 deg m from its unstretched length. The block is on a horizontal surface...

A block of mass 5.00 kg rests on a horizontal surface where the coefficient of sliding kinetic friction between the two is 0.200. A string attached to the block is pulled horizontally, resulting in...

A wood block of mass m rests on a larger wood block of mass M that rests on a wooden table. The coefficients of static and kinetic friction between all surfaces are s and k, respectively. What is the...

Can these please be solved on paper with a step by step explanation and a body diagram when necessary 1) a. 50.5m/sb. 7781 Nc. 72.5 m2)a. 5.11 m/sb. 4.28 m/s3) 10.2m 1) You and your posse are riding...

The 200kg block rests on the horizontal surface as shown. The static friction coefficient is 0.2; kinetic friction coefficient is 0.1. The maximum tension that the rope can sustain is 300N. What will...

A block of mass M = 495.0 g sits on a horizontal tabletop. The coefficients of static and kinetic friction are 0.589 and 0.381, respectively, at the contact surface between table and block. The block...

Rank the six homes described below as potential comparables for the subject property. (The best comp will be ranked number 1.) Construct a comparison chart to evaluate the information given. You can...

Testing for Alzheimer's disease can be a long and expensive process, consisting of lengthy tests and medical diagnosis. A group of researchers (Solomon el al., 1998) devised a 7-minute test to serve...

How do worker-owned businesses try to create a unity of interest? (4)

Develop a model of a three-workstation serial production line with high reject rates: 7% after each workstation. Parts rejected after the first workstation are sent to scrap. Parts rejected after the...

In May 2021, Under Armour agreed to pay $9 million to settle charges with the Securities and Exchange Commission (SEC) for misleading investors regarding the basis for revenue growth and failing to...

Calculate, to two decimal points, Amaya's Total Insurable Earnings in Box 15B. Your answer MUST be written in this format: $1234.56 - any other format may be marked wrong by Moodle. Be sure to...

MacAfee Corp. has basic earnings per Class A common share of $2.61. MacAfee has a tax rate of 25%. The average share price during the year was $47. Review each of the following items: Class B...

Boxer Manufacturing produces luxury dog houses. Each dog house requires 3.5 hours of machine time for its elaborate trim and finishing. For the current year, Boxer calculated its predetermined fixed...

(A) The solubility of CO 2 (g) in H 2 O at 25 C and under a CO 2 (g) pressure of 1 atm is 1.45 g CO 2 /L. Air contains 0.037% CO 2 by volume. Use this information, together with data from Table 16.5,...

The gravitational force on a baseball is Fgj. A pitcher throws the baseball with velocity vi by uniformly accelerating it straight forward horizontally for a time interval t = t 0 = t. If the ball...

To model a spacecraft, a toy rocket engine is securely fastened to a large puck, which can glide with negligible friction over a horizontal surface, taken as the xy plane. The 4.00-kg puck has a...

The average speed of a nitrogen molecule in air is about 6.70 x 102 m/s, and its mass is 4.68 x 1026 kg. (a) If it takes 3.00 x 1013 s for a nitrogen molecule to hit a wall and rebound with the same...

A share of DivCorp common stock does not pay a regular dividend, but sometimes awards a special dividend of $10 per share at the end of each year. A risk-averse investor, Najar, has a subjective...

Safari File Edit View History Bookmarks Window Help 1 0 Q Fri Oct 22 6:17 PM ... 0 ' webassignnet (5' [1'] + 33 :3 Topic: 10.7 Discussion--Rising Savings... u Course Hero u Course Hero u Course Hero...

Q1 and Q2 combined: Q1. Today is Aprit 24th 2022 You have just been appointed Chief Economist at Currency Forecasting inc, an economic research consulting company in Washington DC. Congratulationst...