DP Physics (first assessment 2025)

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Question EXE.1A.HL.TZ0.1

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Date Example questions Example questions Marks available [Maximum mark: 1] Reference code EXE.1A.HL.TZ0.1
Level HL Paper 1A Time zone TZ0
Command term Question number 1 Adapted from N/A
1.
[Maximum mark: 1]
EXE.1A.HL.TZ0.1

Two bodies collide on a horizontal frictionless surface. Body X, of mass 2.0 kg, moves with an initial speed of 0.80 m s−1 and body Y is initially stationary. After the collision, body X moves at an angle of 90° to the initial direction of motion with a speed of 0.60 m s−1.

What is the magnitude of the momentum of body Y after the collision?


A.  0.40 kg m s−1

B.  1.0 kg m s−1

C.  2.0 kg m s−1

D.  2.8 kg m s−1

[1]

Markscheme

C

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