You drop pencil from your desk, which is 1 meter above the floor.
a) How long does it take for the pencil to hit the floor?
b) How fast is it going just before it hits the floor?
a) How long does it take for the pencil to hit the floor?
b) How fast is it going just before it hits the floor?
-
t = √(2d/g)
v = √(2ad)
.
v = √(2ad)
.
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Gravity = 9.8m/second
9.8m/s = 1m/t
you should be able to figure it from there.
9.8m/s = 1m/t
you should be able to figure it from there.