(a)(i) Define the term linear momentum. (ii) State the law of conservation of linear momentum. (b) A ball P of mass 0.25 kg, loses one-third of its velocity...

(a)(i) Define the term linear momentum.

(ii) State the law of conservation of linear momentum.

(b) A ball P of mass 0.25 kg, loses one-third of its velocity when it makes a head on collision with an identical ball Q at rest. After the collision, Q moves off with a speed of 2ms\(^{-1}\) in the original direction of P. Calculate the initial velocity of R

(c)(i) State Newton's second law of motion.

(ii) Show that F = ma where F is the magnitude of the force acting on a body of mass m to give it an acceleration of magnitude a.

(iii) The engine of a vehicle moves it forward with a force of 9600 N against a resistive force of 2200 N. If the mass of the vehicle is 3400 kg, calculate the acceleration produced.