The speed of the hare is 15m / s, and the speed of the dolphin is 72 km / h. Which of them has the greatest speed?

The condition gives the speed of two animals – a dolphin and a hare, but they are given in different units.

Given:

V hare = 15 m / s (hare speed);

Dolphin V = 72 km / h (dolphin speed).

We need to find:

which of them has great speed?

We cannot compare the values given in different units of measurement, so we convert the speed of the dolphin from km / h to m / s:

72 km / h = (72 * 1000 m) / (1 * 3600 s) = 20 m / s.

So, the speed of the dolphin is greater than the speed of the hare.

Answer: the dolphin has great speed.