Page 14 - SP015 Past Years PSPM Chapter 1 -5 Ver.2020

PHYSICS PSPM SEM 1 1999 - 2017

UPS 2014/2015 SF016 No. 1(a)(ii)

46. A ping pong ball is thrown vertically upward and returns to its starting point after 4 s.
Calculate the

(a) initial speed of the ball. [3 m]
(b) maximum height of the ball. [2 m]

UPS 2015/2016 SF016 No. 1(a)(i)

47. A firework is shot straight up and burst at a maximum height of 100 m. Calculate the

(a) initial speed of the firework. [3 m]

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

Initial Horizontal Motion ~ Projectile Motion  = 0

PSPM JAN 1999/2000 SF015/2 No. 10(b)

48. A stone is thrown horizontally from the top of a building at the height of 78.4 m with a
-1
speed of 5 m s . What is the distance between the stone and the building when the stone
reaches the ground? Determine the velocity of the stone the moment it hits the ground
and the time taken. [7 m]

UPS 2001/2002 SF015 No. 4(b)

49. -1
v o = 150 m s

2000 m

FIGURE 2.12

-1
FIGURE 2.12 shows a fighter jet that flies horizontally at constant speed 150 m s .
Then it drops a bomb at a height of 2000 m from the ground. Determine

(a) the time for the bomb to reach the ground. [5 m]

(b) the horizontal distance from where the bomb is dropped until where it hits the
ground. [3 m]

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