Difference between revisions of "F = MA 2020 (Mock) Problems"
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==Problem 4== | ==Problem 4== | ||
| − | <math>2</math> blocks are connected by a massless string which slide down an inclined plane having an angle of inclination of <math> | + | <math>2</math> blocks are connected by a massless string which slide down an inclined plane having an angle of inclination of <math>40^\circ</math>. The masses of the blocks are <math>M1 = 4 kg</math> and <math>M2 = 2kg</math>, and <math>M1</math> is above <math>M2</math>. Both blocks have a Coefficients of friction <math>0.25</math> with the inclined plane. What is the tension in the string? |
Revision as of 15:14, 8 July 2020
Contents
Problem 1
Initially at rest, 
masses 
and 
hang on ends of a massless rope on a massless, smooth pulley and the mass hangs 
feet above the ground. Once the system is released, what is the speed of the block when it strikes the ground?
Problem 2
An equilateral triangle has a side length of 
. How high above the base of the triangle the center of mass of the triangle located?
Problem 3
A small object of mass 
is tied to a string of length and is whirled around a horizontal circle of radius 
with a constant speed 
, in a conical pendulum. The center of the circle is vertically below the point of support. What is the period of revolution?
Problem 4
blocks are connected by a massless string which slide down an inclined plane having an angle of inclination of 
. The masses of the blocks are 
and 
, and 
is above 
. Both blocks have a Coefficients of friction 
with the inclined plane. What is the tension in the string?
