If the displacement of a body is measured in metres (m) and the time is measured in…

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

If the displacement ss of a body is measured in metres (m) and the time tt is measured in seconds (s), what is the physical unit of dsdt\dfrac{ds}{dt}? (a) second per metre (s/m)\text{second per metre (s/m)} (b) metre per second (m/s)\text{metre per second (m/s)} (c) metre per second squared (m/s2)\text{metre per second squared (m/s}^2\text{)} (d) dimensionless (no unit)

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