Question

A car travels from rest with a constant acceleration
a for t seconds. What is the average speed of
the car for its journey, if the car moves along
a straight road?​

Answer 1

Answer:

6km

Explanation:

1-1000km that have been trying not showing 250 second

Answer 2

$initial \: speed \: of \: car(u) \: = 0 \\ distance \: covered \: by \: car \: in \: t \: seconds \\ s = ut + \frac{1}{2} {at}^{2} \\ s = \frac{1}{2 {at}^{2} } (u = 0) \\ average \: speed \: of \: car \: = \frac{s}{t } = \frac{1}{2} at$