Question

Тело падало из состояния покоя в течение 3 с. Найдите его скорость в момент падения на Землю (g=10м/с^2)

Answer 1

V=v0+ at
V=0+10x3=30 m/s

Answer 2

Calculation of the Speed of an Object Falling from Rest

To calculate the speed of an object falling from rest, we can use the equation of motion:

v = gt

Where: - v is the final velocity (speed) of the object - g is the acceleration due to gravity (given as 10 m/s^2) - t is the time taken for the object to fall

In this case, the time taken for the object to fall is given as 3 seconds. Therefore, substituting the values into the equation, we get:

v = (10 m/s^2) * (3 s) = 30 m/s

So, the speed of the object at the moment it hits the ground is 30 m/s.