B i think ........................
        
             
        
        
        
Answer:
6957.04N
Explanation:
Using 
vf2=vi2+2ad
But vf = 0 .
So convert 50km/hr to m/s, and you need to convert 61 cmto m
 (50km/hr)*(1hr/3600s)*(1000m/km) = 13.9m/s
 61cm * (1m/100cm) = .61m
So n
 0 = (13.9m/s)^2 + 2a(.61m)
 a = 158.11m/s^2
So 
using F = ma
F = 44kg(158.11m/s^2) = 6957.04N
 
        
                    
             
        
        
        
Option C i.e scattering is the correct answer.
Scattering type of Polarization occurs when light strikes the atoms of a material.
Polarization is the process of transforming unpolarized light into polarized light. There are four methods of polarisation--Transmission, Refraction, Reflaction and Scattering.
 
 
        
                    
             
        
        
        
Heat of combustion.<span> The calorific value is the total energy released as heat when a substance undergoes complete combustion with oxygen under standard conditions. The chemical reaction is typically a hydrocarbon or other organic molecule reacting with oxygen to form carbon dioxide and water and release heat.</span>