Answer:
200metters
Explanation:
because in one second hes going 10 metter in 20 second he will go 20×10=200
 
        
             
        
        
        
The correct answer is C) towards the center of the circle. 
Although the object is moving at a constant speed it is constantly accelerating due to the constant change in direction as it describes the circular path. This causes a constant change in velocity as velocity is a vector quantity.
For the object to maintain the circular path there has to be centripetal force acting on the object and this centripetal force is directed towards the center of the circle.
 
        
             
        
        
        
Here when an object is placed on the level floor then in that case there are two forces on the object
1). Weight of object downwards (mg)
2). Normal force due to floor which will counterbalance the weight (N)
so when no force is applied on the box at that time normal force is counter balanced by weight.
Now here it is given that A person tried to lift the box upwards
So now there are two forces on the box
1). Applied force of person
2). Normal force due to ground
So now these two forces will counter balance the weight of the crate
So we can write an equation for force balance like

given that

here 
m = 30 kg and 
g = acceleration due to gravity = 10 m/s^2

now from above equation


So force applied by the person must be 150 N
 
        
             
        
        
        
Hello! :)
C) heat from the sun
Why?
Because the sun’s heat makes the water turn to steam—or what we call “water vapor.”
Hope this helped and I hope I answered in time!
Good luck!
~ Destiny ^_^