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(TCO 2) A cannonball is fired straight up at 50 m/s. Neglecting air resistance, when it returns to its starting point, its speed is .
50 m/s
more than 50 m/s
less than 50 m/s
depends on how long it is in the air
Question 2. Question :
(TCO 2) Acceleration occurs when an object undergoes ___.
a speed increase
a speed decrease
a change in the direction of travel