Question

find velocity at t = 1 sec , t = 2 sec and t = 3 sec . if s = t^2

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Answer 1

Answer:

2 m/s

4 m/ s

6 m/s

Explanation:

$\frac{ds}{dt} = 2t \: \\ \\ therefore \: \: \: \: v = 2t \\ \\ \\ at \: t = 1 \: \: sec \: \: \: \: v = 2 \: m {s}^{ - 1} \\ \\ at \: t = 2 \: sec \: \: \: \: \: \: v = 4m {s}^{ - 1} \\ \\ \\ \\ at \: \: \: t = 3 \: \: sec \: \: \: \: \: v = 6 \: m {s}^{ - 1}$