s = 1/2 at^2
20 = 4.9 t^2
t = 2.02 s
v = at = 9.8 * 2.02 = 19.8m/s
An apple is dropped from a window 20 m above the ground. How long does it take the apple to reach the ground? What is its final speed?
4 answers
396
19.8m/s
An apple is dropped from a window 20 m above the ground. How long does it take the apple to reach the ground? What is its final speed?
1 answer