The sleds, rolling down the mountain, move uniformly and at the end of the third second from the start of the movement

The sleds, rolling down the mountain, move uniformly and at the end of the third second from the start of the movement they have a speed of 10.8 km / h. Determine with what acceleration the sled is moving.

Task data: V (speed of the sled at the end of the third second after the start of rolling) = 10.8 km / h (in SI V = 3 m / s); t (movement time) = 3 s.

To calculate the required speed of the sled movement, we apply the formula: a = (V + V0) / t.

Calculation: a = (3 + 0) / 3 = 1 m / s2.

Answer: The sliding of the given sleds from the mountain occurred with an acceleration of 1 m / s2.