A firecracker resting on a frictionless horizontal surface explodes into two…
PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A firecracker resting on a frictionless horizontal surface explodes into two equal-mass fragments. One fragment moves away at 12\,m/s directed 30° north of east. Which of the following directions for the second fragment is most consistent with conservation of linear momentum?
(a) 30∘ south of east
(b) 60∘ south of east
(c) 30∘ south of west
(d) due east