Physicshard · Past Paper
A body is moving with constant acceleration. If it travels 10m in 2s and 30m in next 2s, what is the initial velocity?
A0 m/s
B2.5 m/s
C5 m/s
D10 m/s
✓ Correct Answer: A — 0 m/s
Equations: 10 = 2u + 2a and 40 = 4u + 8a. Solving these gives u=0 and a=5.
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