SI or the Systeme' Internationale' is  a body in science that fixes the unit of measurements used for different basic dimensions. The SI unit for distance is meter while that of time is second. Since velocity is equal to distance over time, the SI unit for velocity is m/s. 
        
             
        
        
        
Solution:
Mass(m)=20kg
Displacement (s)=1.5m
For 1 kg force of gravity=10N
We have,
F=mg
or,10=1xg
or g=10m/s^2
Then,
Total work done by the coolie(W)=force x displacement 
or,W=mxgxs
 =20x10x1.5
 =300J
        
             
        
        
        
The appropriate response is the Unusual climate. These are eccentric serious or unseasonal climate; climate at the extremes of the authentic circulation—the range that has been found before. Regularly, extraordinary occasions depend on an area's recorded climate history and characterized as lying in the most strange 10%.
        
             
        
        
        
Answer:
Change a part of the head to international strife. 6. Change a ... example: Add a T to a firearm and get a thing of little value. Answer: rifle, trifle. ... Place one letter in each box working ... If I tell you what she said, will you agree never to tell anyone? 4. ... example: You're a nuisance; please don't ______ me anymore. h. to eat ...
Explanation: