According to Newton's Second Law of Motion, the net force experienced by the system is equal to the mass of the system in question times the acceleration in motion. In this case, the net force is the difference of gravitational force and the force experience by the motion of the airplane. This difference is already given to be 210 N.
Net force = ma
210 N = (73 kg)(a)
a = +2.92 m/s²
Thus, the acceleration of the airplane's motion is 2.92 m/s² to the positive direction which is upwards.
        
             
        
        
        
Answer:
Rs. 432*10^3 (In kilowatts per hour) 
I hope it will be useful. 
 
        
             
        
        
        
Answer:
Explanation:
Given
average speed of train
Maximum acceleration=0.05g
Now centripetal acceleration is


r=7346.93 m
(b)Radius of curvature=900 m
therefore 



 
        
             
        
        
        
Answer:
288N
Explanation:
Given parameters: 
Mass of Cheetah = 12kg 
Acceleration  = 24m/s² 
Unknown: 
Force needed by the cheetah to run  = ? 
Solution: 
The force needed by the Cheetah to run is the net force. 
According to Newton's law; 
     Force  = mass x acceleration
Insert the given parameters and solve; 
    Force  = 12 x 24  = 288N
 
        
             
        
        
        

The equivalent gravitational force is ~

We know that ~

where,
 = mass of 1st object = 500 kg = mass of 1st object = 500 kg
 = mass of 2nd object = 20kg = mass of 2nd object = 20kg
- G = gravitational constant =  
- r = distance between the objects = 2.12 m
Let's calculate the force ~