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Unformatted text preview: Question 1 Three balls of varying masses are releases from rest at
varying heights above the ground as illustrated. Let
tA be the time taken for A to read: the ground, t3
be the time taken for B to reach the ground, ete.. . . .
Ignoring air resistance, which of the following best
describes the relationship between thme times? a) ts 7— is = to aca'waélw .6 @155 =¢B ; {C 5m .a‘r all ‘-
a c) tA > 33 = to A3: Ji— aQSt) d} ta>tn>tc U’Lyiz' A3 3) [Cfésgr At
some 3.3 =0 Steve. 3* /4 Question 2 A baseball of mass 0.145 kg is struck with speed 30 m/s at an angle of 70° from the horizontal.
Ignoring air resistance, determine the maximum height that the baseball reaches. ,.-~ limit 9;], :0- Via: Marl/‘90" =306m3'00 ““ firm/"(3
2M V3! = Wm
{1:0 1+"? 1- . 2..
we xiv" \H * Uta + 201355
51"“ 3%;7 o = (23.1?) + 2(43011;
VII} Ufiyz ...
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