One child is on a table and throw a ball up in the vertical speed 10 m/s master in 2.1 seconds, the ball fell to fit ground effects. Asked if the table height?
One of the children is on the table Throw the ball up vertically with the initial velocity of 10 m / s within 2.1 seconds, the ball hits the ground fit. Asked how high table
The child is on the table. Throw the ball up in the vertical speed of the 10 meters / second, within the time 2.1 seconds, the ball hits the ground. Ask the table how tall?