1. Photo Album by Robert MacKay

13. V=a t Since Vo=0 V=g t On Earth V=10 t

20. The rock falls a distance d=5.0 m/s (1.0s) =5.0 m after falling 1.0 second

21. The rock falls a distance d=10.0 m/s (2.0s) =20.0 m after falling 2.0 seconds

22. The rock falls a distance d=15.0 m/s (3.0s) =45.0 m after falling 3.0 seconds

23. The rock falls a distance d=? after falling 4.0 seconds

24. The rock falls a distance d=20.0 m/s (4.0s) =80.0 m after falling 4.0 seconds

25. For Earth, d=5t 2