Multiple Choice: Assume that the acceleration due to gravity in the absence of friction is a(t) = −10 meters/sec². If a ball is thrown straight up from a height of 5 meters with an initial velocity of 20 m/sec, then its height after 2 seconds is: Homework Help ✎

1. 5 m

2. 10 m

3. 15 m

4. 10 m

5. 25 m