"If three forces acting at a point be in equilibrium, then each force is proportional to the sine of the angle between the other two."The above theorem is known as:

"If three forces acting at a point be in equilibrium, then each force

1.	"If three forces acting at a point be in equilibrium, then each force is proportional to the sine of the angle between the other two."The above theorem is known as:
A.	Pythagoras theorem
B.	Lami's theorem
C.	Kummer's theorem
D.	Hamilton's theorem
Answer» C. Kummer's theorem

Discussion

No Comment Found

Related MCQs

Frictional force is more in
A body of mass 10 kg is initially stationary on a 45° inclined plane as shown in figure. The coefficient of dynamic friction between the body and the plane is 0.3. The body slides down the plane and attains a velocity of 20 m/s. The distance travelled (in metre) by the body along the plane is close to
If W is weight of a body, α is angle of an inclined plane and ϕ is angle of friction, then the force required to drag the body when it is just impending to move the plane, is_____
A wardrobe (mass 100 kg, height 4 m, width 2 m, depth 1 m), symmetric about the Y-Y axis, stands on a rough level floor as shown in the figure. A force P is applied at mid-height on the wardrobe so as to tip it about point Q without slipping. What are the minimum values of the force (in Newton) and the static coefficient of friction μ between the floor and the wardrobe, respectively?
Friction between two surfaces in contact depends on
A weight of 500 N is held on a smooth plane, inclined at 30° to the horizontal by a force P acting 30° above the plane as shown in the figure below. The reaction of the plane on the weight will be:
A wedge M and a block N are subjected to forces P and Q as shown in the figure. If force P is sufficiently large, then the block N can be raised. The weights of the wedge and the block are negligible compared to the forces P and Q. The coefficient of friction (μ) along the inclined surface between the wedge and the block is 0.2. All other surfaces are frictionless. The wedge angle is 30°. The limiting force P, in terms of Q, required for impending motion of block N to just move it in the upward direction is given as P = αQ. The value of the coefficient 'α' (round off to one decimal place) is
If the resultant R, of two forces P and Q acting at an angle θ makes an angle α with P, then
A bucket of water of 50 kg is lifted vertically upwards with a uniform acceleration of 0.5 m/s2 (g = 10 m/s2). Calculate the tension in the rope.
A block weighing W = 20 kN is resting on an inclined plane which makes an angle of 30° to the horizontal. The component of gravity force parallel to the inclined plane is

"If three forces acting at a point be in equilibrium, then each force is proportional to the sine of the angle between the other two."The above theorem is known as:

Discussion

No Comment Found

Related MCQs

Reply to Comment