DP Physics (first assessment 2025)

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Question EXE.2.HL.TZ0.4c

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Date Example questions Example questions Marks available [Maximum mark: 3] Reference code EXE.2.HL.TZ0.4c
Level HL Paper 2 Time zone TZ0
Command term Determine Question number c Adapted from N/A
c.
[Maximum mark: 3]
EXE.2.HL.TZ0.4c
(c)

Determine vA. State the answer in terms of v.

[3]

Markscheme

Energy is conserved hence 12mvA2+12mvB2=12mv2  ✓

Eliminate vB using the result of part (a), e.g., vA2+sin70°sin20°2vA2=v2  ✓

vA=0.342v  ✓