Page 2 - SP015 Past Years PSPM Chapter 6 -14 Ver 2020

PHYSICS PSPM SEM 1 1999 - 2017

PSPM 2014/2015 SF016/2 No. 4(a)

7. A body is performing a uniform circular motion.

(a) Explain why the body experiences a force despite moving with constant speed.
[2 m]
(b) Write an equation of the force and state its direction. [2 m]

PSPM 2011/2012 SF016/2 No. 4(a)

8. Name the force that is responsible for the following motion:
(a) A satellite orbiting earth. [1 m]
(b) A ball attached to a string that swirls horizontally. [1 m]

PSPM 2012/2013 SF016/2 No. 4(a)

9. Name the centripetal force that is responsible for the following motions:
(a) A car moves around a curve without skidding. [1 m]
(b) The moon orbiting the earth. [1 m]

PSPM JAN 1999/2000 SF015/2 No. 5 Edited

10. A

rotating wheel

D B

chair

C
FIGURE 6.2

FIGURE 6.2 shows a passenger riding a vertical rotating wheel of 4.0 m diameter
rotating at constant speed.
(a) Write equations for the reaction force acting on the passenger at position A and B.
[2 m]
(b) What is the maximum angular speed so that the passenger is not thrown out?
[2 m]

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