1. three forces acting at a point will be in equilibrium
2. three forces acting at a point can be represented by a triangle, each side being proportional to force
3. if three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium
4. if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two
if three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium
1. pressure
2. temperature
3. density
4. absolute temperature
absolute temperature
1. these forces are equal
2. the lines of action of these forces meet in a point
3. the lines of action of these forces are parallel
4. (b) and (c) above
(b) and (c) above
1. cannot be subjected to shear forces
2. always expands until it fills any container
3. has the same shear stress.at a point regardless of its motion
4. cannot remain at rest under action of any shear force
cannot remain at rest under action of any shear force
1. pressure
2. flow
3. shape
4. volume
shape
1. reducing the problem of kinetics to equivalent statics problem
2. determining stresses in the truss
3. stability of floating bodies
4. designing safe structures
reducing the problem of kinetics to equivalent statics problem
1. the floor is smooth, the wall is rough
2. the floor is rough, the wall is smooth
3. the floor and wall both are smooth surfaces
4. the floor and wall both are rough surfaces
the floor and wall both are smooth surfaces
1. three forces acting at a point will be in equilibrium
2. three forces acting at a point can be represented by a triangle, each side being proportional to force
3. if three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium
4. if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two
if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two
1. balance each other
2. produce a couple and an unbalanced force
3. are equivalent
4. cannot balance each other
cannot balance each other
1. 2n-3
2. n-1
3. 2n-l
4. n - 2
2n-3