A body was thrown up from 25 meters of the balcony at a speed of 20 m / s.

A body was thrown up from 25 meters of the balcony at a speed of 20 m / s. Find a change of place in 2.0: 4.0; 5.0 seconds. If acceleration (a) = -10m / s ^ 2

The formula for the movement of a body thrown vertically upward: h = v0 * t – g * t ^ 2/2.

In two seconds, the body will fly the path: 20 * 2 – 10 * 2 ^ 2/2 = 40 – 20 = 20 m.

The body will be at a height: 25 + 20 = 45 m.

In four seconds, the body will fly the path: 20 * 4 – 10 * 4 ^ 2/2 = 80 – 80 = 0 m.

The body will be at a height: 25 + 0 = 25 m. This means that the body has already reached its maximum height, began to fall and reached the starting point.

In five seconds, the body will fly the path: 20 * 5 – 10 * 52/2 = 100 – 125 = -25 m.

The body will be at a height: 25 + (-25) = 0 m. This means that the body has already reached the surface of the earth.