Question

L1=40км t1=2ч l2=45км t2=3ч v-?

Answer 1

V=s:t s(расстояние)
1)40:2=20км/ч(v1)
2)45:3=15км/ч(v2)

Answer 2

To find the speed (v), you can use the formula:

$v = \frac{\text{distance (d)}}{\text{time (t)}}$

You have two sets of distances and times, so you can calculate the speeds for each one:

For the first set (L1 = 40 km and t1 = 2 hours): $v_1 = \frac{L1}{t1} = \frac{40\ \text{km}}{2\ \text{h}} = 20\ \text{km/h}$

For the second set (L2 = 45 km and t2 = 3 hours): $v_2 = \frac{L2}{t2} = \frac{45\ \text{km}}{3\ \text{h}} = 15\ \text{km/h}$

So, the speed for the first set is 20 km/h, and the speed for the second set is 15 km/h.