Question

A car accelerates at 1.5 meter per second square in a straight road. How much is the increase in velocity in 5 second?

Answer 1

Answer:

7.5 increase

Explanation:

multiple 1.5×5

Answer 2

$Let \:initial \:speed = u$

$And \:final \:speed = v$

$a = 1.5ms {}^{ - 2}$

$t = 5 \: second$

$a = \frac{v - u}{t}$

$1.5 = \frac{v - u}{5}$

$7.5 = v - u$

$\huge\red{\boxed{\purple{v = 7.5 + u}}}$