Answer:
The new period will be √6 *T
Explanation:
period ,T=2π√(L/g)       ................equation 1
where T is the period on earth
gravitational acceleration on the moon is g/6
T1 = 2π√[L/(g/6)]
T1=2π√(6L/g)               ...............equation 2
divide equation 2 by 1
T1/T =2π√(6L/g)÷2π√(L/g)
T1/T =√(6L/L)
T1/T =√6
T1 = √6 *T
 
        
             
        
        
        
First we need to convert the angular speed from rpm to rad/s. Keeping in mind that 


the angular speed is

And so now we can calculate the tangential speed of the child, which is the angular speed times the distance of the child from the center of the motion:
 
        
             
        
        
        
I got it keep it bucks worth u this it tooooo muchhhhhhh
        
                    
             
        
        
        
Altitude is the height of something or the point of sea level or ground level.
hope i helped!!