What is the correct answer?


If a number of forces are acting at a point, their resultant is given by

A. (ΣV)2 + (ΣH)2

B. √[(ΣV)2 + (ΣH)2]

C. (ΣV)2 +(ΣH)2 +2(ΣV)(ΣH)

D. √[(ΣV)2 +(ΣH)2 +2(ΣV)(ΣH)]

Correct Answer :

B. √[(ΣV)2 + (ΣH)2]

Related Questions

Which of the following is a vector quantity? A heavy string attached at two ends at same horizontal level and when… A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in… Centre of gravity of a solid cone lies on the axis at the height According to Newton's first law of motion, The coefficient of friction depends on Moment of inertia of a hollow rectangular section as shown in the below… If the masses of both the bodies, as shown in the below figure, are reduced… The total energy possessed by a system of moving bodies Joule is the unit of In a screw jack, the effort required to lower the load is __________ the… Kinetic friction is the Non-coplanar non-concurrent forces are those forces which Which of the following is an equation of linear motion? (where, u and… Which of the following is not the unit of energy? Tension in the cable supporting a lift is more when the lift is moving… A heavy ladder resting on floor and against a vertical wall may not be… The centre of gravity a T-section 100 mm × 150 mm × 50 mm… An ideal machine is one whose efficiency is The moment of inertia of a thin rod of mass m and length l, about an axis… The range of a projectile is maximum, when the angle of projection is The unit of force in S.I. system of units is On a ladder resting on smooth ground and leaning against vertical wall,… The maximum velocity of a particle moving with simple harmonic motion… The moment of the force P about O as shown in the below figure is The matter contained in a body, is called The resolved part of the resultant of two forces inclined at an angle… The units of moment of inertia of an area are In the lever of third order, load W, effort P and fulcrum F are oriented… Effect of a force on a body depends upon