The hedgehog was rolling down the slope of a 10 m long slide at a speed of 20 cm / s.

The hedgehog was rolling down the slope of a 10 m long slide at a speed of 20 cm / s. How long did this descent take from the hedgehog?

The distance traveled by the hedgehog during the descent can be calculated by the formula:
S = V * t, where S is the path covered by the hedgehog (S = 10 m), V is the descent speed (V = 20 cm / s = 0.2 m / s), t is the time the hedgehog moves (s).
Let us express and calculate the descent time:
t = S / V = 10 / 0.2 = 50 s.
Answer: Descent from the hill took 50 seconds from the hedgehog.