What is the correct answer?


If P is the force acting on the body, m is the mass of the body and a is the acceleration of the body, then according to Newton's second law of motion,

A. P + m.a = 0

B. P - m.a = 0

C. P × m.a = 0

D. P/m.a = 0

Correct Answer :

B. P - m.a = 0

Related Questions

If tension in the cable supporting a lift moving downwards is half the… The range of a projectile is maximum, when the angle of projection is If a suspended body is struck at the centre of percussion, then the pressure… Three forces acting on a rigid body are represented in magnitude, direction… The periodic time of a particle with simple harmonic motion is __________… The C.G. of a solid hemisphere lies on the central radius 3r Two forces are acting at an angle of 120°. The bigger force is 40… The skidding away of the vehicle on a level circular path can be avoided… A force acting on a body may If three forces acting in different planes can be represented by a triangle,… The centre of gravity of a triangle lies at the point of A trolley wire weighs 1.2 kg per meter length. The ends of the wire are… The linear acceleration (a) of a body rotating along a circular path of… If the masses of both the bodies, as shown in the below figure, are doubled,… The moment of inertia of a solid cone of mass m and base radius r about… If the number of pulleys in a system is equal to its velocity ratio, then… The amplitude is always __________ radius of the circle. In order to double the period of simple pendulum, the length of the string… The velocity of a body on reaching the ground from a height h, is The total motion possessed by a body, is called A body will begin to move down an inclined plane if the angle of inclination… Centre of gravity of a thin hollow cone lies on the axis at a height of Moment of inertia of a rectangular section having width (b) and depth… Coplanar concurrent forces are those forces which Moment of inertia of a circular section about its diameter (d) is A smooth cylinder lying on its convex surface remains in __________ equilibrium. For any system of coplanar forces, the condition of equilibrium is that… The weight of a body is due to The M.I. of hollow circular section about a central axis perpendicular… The forces, whose lines of action are parallel to each other and act in…