A cherry falls from a tree branch that is 9 feet above the ground, how far above the ground is the cherry after 0.2 seconds?
a cherry falls from a tree branch that is 9 feet above the ground, how far above the ground is the cherry after 0.2 seconds?
a cherry falls from a tree branch that is 9 feet above the ground, how far above the ground is the cherry after 0.2 seconds?
1 Answer
8.36 feet
Explanation:
SUVAT equations
If the cherry is undergoing free fall with negligible air resistance we can assume that the only acceleration is acceleration due to gravity which is
Assuming the cherry's height is the same as that of the tree branch it is 9 ft above the ground, or
Time
Acceleration
Initial velocity
This gives us all the values we need to find the displacement
Now, notice that this is the displacement from the branch, not distance from the ground. To find that we subtract the distance fallen from the height of the branch.