Answer:
4.5g/cm^3
Explanation:
Here, Mass(m)=67.5g
          Volume(v)=15cm^3
Now, According to formula,
         Density(p)=m/v
                          =67.5/15
                          =4.5g/cm^3
 
        
             
        
        
        
-- As far as we know, the forces on the wheelbarrow are balanced.
-- That tells us that the net force on the wheelbarrow is zero, just
as if there were no forces acting on it at all.
-- That tells us that the wheelbarrow's acceleration is zero ... its
speed and direction of motion are not changing.
-- That tells us that the wheelbarrow is moving in a straight line
at a constant speed.  It's very possible that relative to us, the speed 
may be zero, but we can't tell that from the given information.
        
             
        
        
        
Answer:
tensional force
Explanation:
It usually exist in fluid or any liquid substance where by an object is put before it
e.g An ant can walk on water without submersed in it.