Answer:
Answer:
safe speed for the larger radius track u= √2 v
Explanation:
The sum of the forces on either side is the same, the only difference is the radius of curvature and speed.
Also given that r_1= smaller radius
r_2= larger radius curve
r_2= 2r_1..............i
let u be the speed of larger radius curve
now, \sum F = \frac{mv^2}{r_1} =\frac{mu^2}{r_2}∑F= 
r 
1
 
mv 
2
 
 = 
r 
2
 
mu 
2
 
 ................ii
form i and ii we can write
v^2= \frac{1}{2} u^2v 
2
 = 
2
1
 u 
2
 
⇒u= √2 v
therefore, safe speed for the larger radius track u= √2 v
 
        
             
        
        
        
Answer:
C. Never 
Step-by-step explanation:
if a number can be written as a fraction then it is not an irrational number
 
        
                    
             
        
        
        
Answer:
46 sides in all
Step-by-step explanation:
2 pentgons would have 10 sides 
5 hexagons would have 30 sides 
2 triangles 6 sides