Question

A ball rolls off the edge of a table 1.44m above the floor and strikes the floor at a point 2m horizontally from the edge of the table. (5 pts)
A) What is the time the ball was in the air?

Answer 1

Answer:

Using h=

2

1

gt

2

, we have

h

AB

=

2

1

gt

AC

2

or t

AC

=

g

2h

AB

=

9.8

2×4

=0.9s

Further, BC=vt

AC

.

or v=

t

AC

BC

=

0.9

5.0

=5.55m/s

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