thanks chen
I solved that problem.
As for the apple problem, its basically an apple is dropped and the photos are taken at regular intervals. The shot does not have to be a complete apple, as it falls down the acceleration increases and the distance between the previous position to current...
Can anyone suggest how to do these problems.
1) A rocks is dropped from a sea cliff and the sound of it striking the ocean is heard 3.4s later. If the speed of sound is 340m/s, how high is the cliff?
2) An apple is dropped and a multi-flash camera is used to take photographs of the...