DP Physics (first assessment 2025)

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Question EXE.2.HL.TZ0.3b

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Date Example questions Example questions Marks available [Maximum mark: 3] Reference code EXE.2.HL.TZ0.3b
Level HL Paper 2 Time zone TZ0
Command term Determine Question number b Adapted from N/A
b.
[Maximum mark: 3]
EXE.2.HL.TZ0.3b
(b)

Determine the angle θ that the velocity of ball B makes with the initial direction of motion of ball A.

[3]

Markscheme

The use of conservation of momentum in the horizontal direction, e.g. m×1.0×cos45°+m×vx=m×2.0 ✓

vx=«2.0-1.0×cos45°=»1.3 «m s−1» ✓

θ=tan-1vyvx=29° ✓