The speed of light generally would be 300000km/s but since the train is moving in the same direction as the light it would apparently appear to be 100000km/s
        
             
        
        
        
Answer:
3.192 m/s
Explanation:
t = Time taken = 0.900 seconds
u = Initial velocity
v = Final velocity
s = Displacement = 1.1 meters
a = Acceleration due to gravity = 9.81 m/s²

Velocity of the elevator when it snapped is 3.192 m/s
 
        
             
        
        
        
The wave diagramed in blue.
        
                    
             
        
        
        
its B 0.225kPa using the formula p=f/A then change the pascals into kpa