The trolley rolls downhill with an acceleration of 15 cm / s. what speed the trolley will develop in 1 min.

Given: a (acceleration of the considered trolley when moving downhill) = 15 cm / s2 = 0.15 m / s2; t (acceleration duration) = 1 min = 60 s; the initial speed of the trolley is taken to be zero.

The speed that the considered trolley can develop can be calculated by the formula: V = V0 + a * t = 0 + a * t.

Let’s make a calculation: V = 0.15 * 60 = 9 m / s.

Answer: The trolley under consideration will reach a speed of 9 m / s in 1 minute.