Initially its moving with tail wind so here the speed of wind will support the motion of the plane
so we can say



now when its moving with head wind we can say that wind is opposite to the motion of the plane



now by using above two equations we can find speed of palne as well as speed of wind


 
        
             
        
        
        
Answer:

Explanation:
Force can be found by multiplying the mass by the acceleration. 

The mass of the roller coaster is 2000 kilograms and the acceleration is 2 meters per second squared. 

Substitute the values into the formula.

Multiply. 

- 1 kg*m/s² is equal to 1 N
- Therefore our answer of 4000 kg*m/s² is equal to 4000 Newtons 

The net force acting on the roller coaster is <u>4000 Newtons.</u>
 
        
             
        
        
        
Answer:
(c) no different than on a low-pressure day.
Explanation:
The force acting on the ship when it floats in water is the buoyant force. According to the Archimedes' principle: The magnitude of buoyant force acting on the body of the object is equal to the volume displaced by the object.
Thus, Buoyant forces are a volume phenomenon and is determined by the volume of the fluid displaced.  
<u>Whether it is a high pressure day or a low pressure day, the level of the floating ship is unaffected because the increased or decreased pressure at the all the points of the water and the ship and there will be no change in the volume of the water displaced by the ship.</u>
 
        
             
        
        
        
Answer:
More force
Explanation:
Object A has more mass than object B
   For object A to accelerate at the same rate as object B, it will need more force. 
According to Newton's second law of motion "the net force on a body is the product of its mass and acceleration". 
   Net force  = mass x acceleration
Now, if a body has more mass and needs to accelerate at the same rate as another one with a lower mass, the force on it must be increased. 
 
        
             
        
        
        
The correct answer is amplitude