Two particles P and Q are initially at rest and 1 m aparts. P has a mass of 1 kg and Q a mass of 3 kg . P and Q attract each other with a constant force. At what distance from P's original position do the particles collide?

Two particles A and B are initially separated by a distance of 1.0 m and are at rest. The mass of A is 100 gm and that of B is 30.0 gm and they move under a constant mutual attractive force of 0.02 N .At what distance from the A's original position do the particles collide.

In figure-6.105, particle A has a mass of 1.4 and particle B has a mass of 3.1 kg . What is the gravitational field at point P ?

To particles P and Q are initially 40 m apart P behind Q. Particle P starts moving with a uniform velocity 10 m/s towards Q. Particle Q starting from rest has an acceleration 2m//s^(2) in the direction of velocity of P. Then the minimum distance between P and Q will be

Three particales P,Q and R are placedd as per given Masses of P,Q and R are sqrt3 m sqrt3m and m respectively The gravitational force on a fourth particle 'S' of mass m is equal to .

Three particales P,Q and R are placedd as per given Masses of P,Q and R are sqrt3 m sqrt3m and m respectively The gravitational force on a fourth particle 'S' of mass m is equal to .

Two particles P and Q move towards with each other from rest with the velocities of 1 and 20 ms^(-1) under the mutual force of attraction. The velocity of centre of mass is

Two particles P and Q are projected simultaneously away from each other from a point A as shown in figure. The velocity of P relative to Q in ms^(-1) at the instant when the motion of P is horizontal is