When forces F1 , F2 , F3 are acting on a particle of mass m such that F2 and F3 are mutually perpendicular, then the particle remains stationary.

Acceleration in an object could be zero even when several forces are acting on it. This happens when all the forces cancel out each other i.e., the net force acting...

Zero net force The kite is stationary in the sky, i.e., it is not moving at all. Hence, as per Newton’s first law of motion, no net force is acting on the...

(d) He might have used noninertial frame. Explanation: (d) is true because if a particle with no force acting on it is viewed from a non-inertial frame that is moving with a...

(d) He might have used noninertial frame. Explanation: Because if a particle with no force acting on it is viewed from a non-inertial frame that is moving with a certain acceleration, then...

(c) its kinetic energy is constant (d) it moves in a circular path. Explanation:  Since the force is always perpendicular to the velocity, it means there is no displacement in the direction of...

(b) must not accelerate  (c) may move Explanation:  If there is no/zero resultant force acting on a system, there will be no acceleration. Hence (b), not (d).  If it is already moving with a...

(a) noble gases.  (b) between HCl molecules.  (c) Between water molecules or HF molecules.  (d)Between NO3 - and water molecules

No change  in the linear momentum of the system

 Resultant force = 10N at an angle of tan-1(3/4) = 37° with the directionof 8N force. Acceleration = 2ms-1 in the same direction as the resultant force