An arrow fired from a bow vertically upwards reaches its maximum height in 6 seconds. The initial speed of the arrow is.

Given:

t = 6 seconds – the time interval during which the arrow reaches its maximum height;

g = 10 meters per second squared – the acceleration of gravity (constant near the surface of the earth).

It is required to determine v0 (meter per second) – the initial speed of the arrow.

Since the condition of the problem is not specified, we will not take into account air resistance in solving the problem. Then, given that at the maximum height, the arrow speed will be zero:

v0 – g * t = 0;

v0 = g * t = 10 * 6 = 60 meters per second.

Answer: the initial speed of the arrow was 60 m / s.