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 s-2 in a body of 4 kg.
ii) an acceleration of 3m s-2 in a body of 10 kg.
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A) Jet airplanes utilize the principle of action and reaction. ... The equal and opposite reaction of the backward-heading gases pushes the aircraft forward at a great speed. (ii) While rowing a boat, the boatman pushes the water backwards with the oars.
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