Question

if s= t² find velocity from 0 to 5 seconds​

Answer 1

Answer:

After 1 second, the velocity is

4.5+1.5=6 m/s.

After 3 seconds, the velocity is

4.5+3×1.5=9 m/s.

After t seconds, the velocity is

4.5+1.5t m/s.

Answer 2

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By getting velocity, we have to differentiate S.

$velocity \: \: v = \frac{d \: s}{dt} = \frac{d \: \: {t}^{2} }{dt} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 2t \\ \\ so \: \: when \: t \: = 5 \: sec \: \\ then \: velocity \: \: v = 2 \times 5 = 10 \: m {s}^{ - 1}$