QUESTION 4 (Start on a NEW page.) Two balls A and B, are thrown simultaneously from different positions of the
balcony overlooking the street. Ball A is thrown vertically upwards with a velocity of
5 m. st from the top of a balcony and ball B is thrown vertically upwards with a
velocity of 8 m. s?from the bottom of the balcony. Ignore effects of alr resistance.
Ball A:5.m. st
balcony
Ball B: 8 m. s."
Sreet
4.1 Define the term projectile.
(2)
4.2 Calculate the magnitude of the displacement above the balcony of ball A.
(3)
4.3 If the height of the balcony is 5 m, show by calculations whether or not ball B
reached the maximum height reached by ball A.
(5)
Please turn over
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