Question

A car accelerates at 5m/s^2 to a velocity of 48m/s. How long does it take to get the car to that velocity?

Answer 1

Answer:

240 s or 4 min

Step-by-step explanation:

If the car was at rest ;

u = 0

a = 5m/s²

v = 48 m/s

t = ? (to be found)

By formula ,

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

$a = \displaystyle\frac{48 - 0}{t}$

$a = \displaystyle\frac{48}{t}$

$5 \ m/s^2 × 48 \ m/s = t$

$t = 240 \ s$