Question

David travels 60 kilometers un two hours. How many meters of distance will he cover in one second
A. 83.0 m

B. 8.3 m

C. 0.083 m

D. 0.83 m​

Answer 1

We must find the velocity, but first we must convert units.

For the distance from kilometers to meters:

d = 60 km. (1,000 m / 1 km) = 60,000 m

Time from hours to seconds:

t = 2 h. (3,600 s / 1h) = 7,200 s

So, the speed with which David travels is:

v = d / t = 60,000 m / 7,200 s ≈ 8.3 m / s

Finally, the distance it travels in one second is:

d = v . t = 8.3 m/s . 1 s = 8.3 m

Option B)