Question

Шишка, висевшая на дереве на высоте 10 метров над землёй, упала. Предполагая что шишка не ударялась о ветки в процессе падения, найдите её скорость(В м/с) в момент удара о землю

Answer 1

Скорость в момент удара равна 14 м/с

Answer 2

Calculation of the Speed of the Falling Cone

To calculate the speed of the cone at the moment it hits the ground, we can use the principles of physics. The cone falls freely under the influence of gravity, so we can apply the equations of motion to determine its speed.

The equation we can use is:

v^2 = u^2 + 2as

Where: - v is the final velocity (speed) of the cone at the moment it hits the ground. - u is the initial velocity of the cone, which is zero since the cone was initially at rest. - a is the acceleration due to gravity, which is approximately 9.8 m/s^2. - s is the distance the cone falls, which is equal to the height of the cone above the ground.

In this case, the height of the cone above the ground is given as 10 meters. Plugging in the values into the equation, we get:

v^2 = 0 + 2 * 9.8 * 10

Simplifying the equation, we find:

v^2 = 196

Taking the square root of both sides, we get:

v = 14 m/s

Therefore, the speed of the cone at the moment it hits the ground is 14 m/s.