Answer:
The force on one side of  the plate is 3093529.3 N.
Explanation:
Given that,
Side of square plate = 9 m
Angle = 60°
Water weight density = 9800 N/m³
Length of small strip is


The area of strip is

We need to calculate the force on  one side of  the plate
Using formula of pressure


On integrating 




Hence, The force on one side of  the plate is 3093529.3 N.
 
        
             
        
        
        
Kinetic energy is the energy for a catapult.
        
             
        
        
        
Answer:
True
Explanation:
Driving safely at night requires seeing well not only under low light, but also requires drivers to see low-contrast objects.
 
        
             
        
        
        
The object will move in the direction of the applied force.