Answer:
<h3>0.445</h3>
Explanation:
In friction, the coefficient of friction formula is expressed as;

Ff is the frictional force = Wsinθ
R is the reaction = Wcosθ
Substitute inti the equation;

Given
θ = 24°

Hence the coefficient of kinetic friction between the box and the ramp is 0.445
 
        
             
        
        
        
The average act on her during the deceleration is 4.47 meters per second.                                                                 
<u>Explanation</u>:
<u>Given</u>:
youngster mass m = 50.0 kg 
She steps off a 1.00 m high platform that is s = 1 meter
She comes to rest in the 10-meter second
<u>To Find</u>:
The average force and momentum
<u>Formulas</u>:
p = m * v
F * Δ t = Δ p 
vf^2= vi^2+2as
<u>Solution</u>:
a = 9.8 m/s
vi = 0 
vf^2= 0+2(9.8)(1)
vf^2 = 19.6 
vf = 4.47 m/s . 
Therefore the average force is 4.47 m/s.                                           
                                  
 
        
             
        
        
        
Explanation:
nuclear energy is non renewable resources because it cannot be renewed...
 
        
             
        
        
        
Answer:
The coefficient of rolling friction will be "0.011".
Explanation:
The given values are:
Initial speed,

then,

     
Distance,
s = 18.2 m
The acceleration of a bicycle will be:
⇒ 
On substituting the given values, we get
⇒    
⇒    
⇒    
⇒    
As we know,
⇒  
and,
⇒  
⇒       
On substituting the values, we get
⇒       
⇒       