Page 12 - SP015 Past Years PSPM Chapter 1 -5 Ver.2020

PHYSICS PSPM SEM 1 1999 - 2017

PSPM JUN 2000/2002 SF015/2 No. 11(a)

37. (a) An advertisement board is hung at the height of 19.6 m on an overhead bridge
across the road. At 30 m from the overhead bridge, a driver of a car traveling at a
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constant velocity of 20 m s saw the advertisement board falls. Calculate the time
taken for the advertisement board to fall on the road. [2 m]

(b) By assuming the length of the car is 3.5 m and neglecting its height, show whether
the advertisement board hits the car or not, if

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(i) the driver decides to brake with a deceleration of 4.2 m s . [3 m]
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(ii) the driver reacts by accelerating his car with an acceleration of 1.2 m s .
[3 m]

PSPM 2002/2003 SF017/2 No. 1

38. A marble is tossed vertically upward to the air from the surface of ground with an initial
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velocity of 15 m s . Calculate

(a) the maximum height achieved by the marble. [2 m]

(b) the time taken by the marble to reach the maximum height. [3 m]

UPS 2005/2006 SF017 No. 2(c)

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39. A stone is thrown upward from the roof of a building with velocity 15 m s at an angle
of 30 to the horizontal. The height of the building is 40 m. Calculate

(a) the maximum height of the stone from the ground. [3 m]
(b) the speed of the stone just before it strikes the ground. [3 m]

PSPM 2006/2007 SF017/2 No. 1

40. A stone is dropped into a well of 11 m deep. How long after that, the sound of the
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splash can be heard? (Speed of sound = 343 m s ) [4 m]

UPS 2007/2008 SF017 No. 2(b)

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41. A ball is thrown upward from the ground with an initial speed of 25 m s . At the same
instant, another ball is dropped from a 15 m building. When will the two balls be at the
same height from the ground?
[5 m]

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