Without air resistance, the speed lost while a cannonball is going up in the air equals the speed gained while it is coming down. Group of answer choices
True
False
True.
In the absence of air resistance, the speed lost by a cannonball while it is going up is equal to the speed gained while it is coming down. This is due to the conservation of energy and the symmetry of projectile motion under uniform gravitational acceleration. The cannonball will decelerate at a constant rate (due to gravity) as it ascends and will accelerate at the same rate as it descends. Therefore, the speeds at the same heights during ascent and descent will be equal.