The activity: 1. Put the flat surface on the floor or on the table. 2. Place the coin on the middle of the flat surface. 3. Slow elevate one side or end of the flat surface until the moves and slides. Determine the angle of elevation  of the ramp. The following observations are to be expected in the first activity except for

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The activity:

1. Put the flat surface on the floor or on the table.
2. Place the coin on the middle of the flat surface.
3. Slow elevate one side or end of the flat surface until the moves and slides. Determine the angle of elevation  of the ramp.

The following observations are to be expected in the first activity except for

 

a.

The angle theta at which the coin will begin to slide down the ramp is constant.

 

b.

The coin will slide down the ramp at constant speed.

 

c.

Different material combinations (i.e. metal (coin) against wood (board) as opposed to rubber (eraser) against wood (board)) have different values of coefficient of static friction.

 

d.

The coefficient of static friction that will be calculated is constant.

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