a) State Newton's third law of motion and give two examples to
illustrate the law.
b)State and explain the law of conservation of momentum.
c)Define the term 'work'. Write the formula for the work done
on a body when a force acts on the body in the direction of it
displacement. Give the meaning of each symbole which occur
in the formula
d)A person of mass 50 kg climbs a tower of height 72 metres.
Calculate the work done (g =9.8ms-²)
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Answer:
a) every action has an equal opposit reaction
eg- while buring a candle and if you stop the supply of oxygen in candle then the flame of candle will not occur.
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