As you pump up your pressure rocket, it expels water in the bottle downward and rocket moves upward. This is ……
a) action
b) reaction
c) hydraulic pressure
d) none of these
Exercise:
A football is at rest on ground the forces acting on it are……
a) zero
b) balanced
c) unbalanced
d) uncountable
An object moving in a circle uniformly the forces acting on it are……..
a) zero
b) balanced
c) unbalanced
d) uncountable
The unit of buoyant force is…….
a)pascal
b) newton
c) buoyancy
d) pressure
Which of the following quantities is measured in units of pascal?
a) friction
b) buoyancy
c) pressure
d) force
