Difference between revisions of "F = MA 2020 (Mock) Problems"
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A small object of mass <math>m</math> is tied to a string of length <math>l</math> and is whirled around a horizontal circle of radius <math>r</math> with a constant speed <math>v</math>, in a conical pendulum. The center of the circle is vertically below the point of support. What is the period of revolution? | A small object of mass <math>m</math> is tied to a string of length <math>l</math> and is whirled around a horizontal circle of radius <math>r</math> with a constant speed <math>v</math>, in a conical pendulum. The center of the circle is vertically below the point of support. What is the period of revolution? | ||
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| + | ==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>37^\circ</math>. | ||
Revision as of 15:12, 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 
.
