Question

A car accelerates at 1.5 m/s2 on a straight road. How much is the increase in velocity in the next 6 seconds?

Answer 1

supposing that it's initial velocity was u

using first equation of motion:

v = u + at
v = u + (1.5)(6)
v = u + 9

so,
the increase in the velocity would be u+ 9 where u is it's initial velocity

Answer 2

Answer:

a = 1.5

u = 0

t = 6s

1.5 = v - 0 / 6

1.5 = v/6

v = 15/10 * 6

= 90/10

after cutting it will be 9 m/s

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