Vertical Projectile Motion: Exercise 5

A hot air balloon is descending with a constant velocity of 3 m∙𝑠^(−1) when somebody inside the balloon throws an apple downward with a velocity of 5 m∙𝑠^(−1). The apple strikes the ground after 2,5s. Calculate:

1. The initial velocity of the apple
2. The velocity with which the apples strikes the ground
3. How far above the ground the balloon was when the apple was released

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