Q1. As a result of a non zero resultant force, an object experiences a momentum change of 27 Kg m/s. This change in momentum takes 1.5 seconds. From this information calculate the size of the force applied to the object.


A1.



Q2. A force of 10 N is applied to an object, which experiences a change in momentum of 64 Kg m/s. Calculate the time for which the force was applied.


A2.


A.


Q3. A bullet is fired from a gun, during which it experiences a force of 100 N applied over a period of 0.05 seconds. The mass of the bullet is 25 g, calculate the speed at which the bullet leaves the barrel of the gun.


A3. First of all, make a note of what you have got (information wise) and make sure that it is all in the correct units. The mass of the bullet is 25 g which is 0.025 kg, everything else appears to be okay:


F=100N, m=0.025 Kg, t= 0.05 s




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