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 Form 4 Physics Uniform Circular Motion Questions and Answers

(a) Figure 13 shows a pendulum bob suspended by a thread moving in a horizontal circle.
(i) Name two forces acting on the pendulum bob as it moves (ii) State what happens to each of the forces when the angular velocity of the pendulum bob is increased.
(iii) State two applications of uniform circular motion in daily life. (KCSE paper 1 question 18(a))

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Answer Text:
i).Centripetal force, weight.
ii).Centripetal force increases, weight remains constant.
iii).Vehicle speed governor, Centrifuges, satellites.