Question

тело свободно падает с высоты 10 м какова его скорость на высоте 6 м? какова его скорость при ударе о землю??

Answer 1

если точно, то 8.854 м/с и 20 м/с при g=9.8

Answer 2

Calculation of Velocity at Height 6m

To calculate the velocity of an object freely falling from a height of 10m at a height of 6m, we can use the equation for the velocity of an object in free fall:

v = sqrt(2gh)

Where: - v is the velocity of the object - g is the acceleration due to gravity (approximately 9.8 m/s^2) - h is the height from which the object is falling

Substituting the values into the equation, we get:

v = sqrt(2 * 9.8 * 6) m/s

Calculating this, we find that the velocity of the object at a height of 6m is approximately 12.96 m/s.

Calculation of Velocity at Impact with the Ground

To calculate the velocity of the object at the moment of impact with the ground, we can use the same equation:

v = sqrt(2gh)

Substituting the values into the equation, we get:

v = sqrt(2 * 9.8 * 10) m/s

Calculating this, we find that the velocity of the object at the moment of impact with the ground is approximately 14 m/s.

Please note that these calculations assume no air resistance and that the object is falling freely under the influence of gravity alone.