Answer:
N = 148.10N
Explanation:
GIVEN 
Weight =125 N 
force = 35
angle =42°
since there is no vertical acceleration  from
 from 
free body diagram 


 
        
             
        
        
        
Answer:
Gravitational energy 
Explanation:
when over head , when it hits the floor thermal energy
 
        
             
        
        
        
Answer:
The value of spring constant is 266.01 
Explanation:
Given:
Mass of pellet  kg
 kg
Height difference of pellet rise  m
 m
Spring compression  m
 m
From energy conservation law,
Spring potential energy is stored into potential energy,
   
Where  spring constant,
 spring constant, 
   
   
    
 
Therefore, the value of spring constant is 266.01 
 
        
             
        
        
        
The person should start to slow down but if close enough or in the intersection go threw. Otherwise come to a complete stop until the light turns green again