The force required producing acceleration 2m/s2 on an object of 10 kg mass is:
0.2N
5N
0.5N
20 N
F = ma F = 10 kg x 2 m/s2 = 20 kg.m/s2 = 20 N.
A net force F is required to give an object with mass m an acceleration a. If a net force 6F is applied to an object with mass 2m, what is the acceleration on this object?
(a) State Newton’s third law of motion and give two examples to illustrate the law. (b)Calculate the force required to produce : (i) an acceleration of 2.5 m/s2 in a body of 4 kg (ii) an acceleration of 3.0 m/s2 in a body of 10 kg.