The same two boxes, A and B, are lying on the same table connected by the same string. The pulling force is now 30 N.
Calculate the acceleration of box A and box B
Calculate the acceleration in the
box A any B​

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

d. air pressure decreases as altitude increases.

unbalanced force

explanation: