PHY 250L Lab 4 Quiz _Straighterline

PHY250L_ESL | Lab 4: Friction



Started on Monday, May 4, 2020, 5:27 PM
State Finished
Completed on Monday, May 4, 2020, 5:41 PM
Time taken 14 mins 16 secs
Grade 42.00 out of 42.00 (100%)




Question 1
At the moment you start skiing down an incline, the component of gravitational force along the incline that is acting
Correct on you is
4.20 points out
of 4.20 Select one:
a. greater than force of static friction
b. equal to force of static friction
c. equal to your weight
d. equal to normal force



The correct answer is: greater than force of static friction




Question 2 Two blocks of identical material and mass are kept on an incline, but the area of contact of block 1 is double the area
Correct of contact of block 2. Initially, the angle of incline θ is such that both blocks are at rest. If you start increasing the
4.20 points out
angle of the incline, which block will start moving Trst?
of 4.20




Select one:
a. They both start moving at the same time
b. Block 1
c. Block 2
d. Information given is not suWcient to determine.



The correct answer is: They both start moving at the same time




This study source was downloaded by 100000847426977 from CourseHero.com on 07-24-2022 08:50:24 GMT -05:00


https://www.coursehero.com/file/61449944/StraighterLine-PHY250L-Lab-4-Quizpdf/