Question

A ball rolls off a table with a velocity of 3.2 m/s. The table is 1.5 m high. a. When does the ball hit the floor? b. How far from the base of the table does the ball travel? c. With what velocity does the ball hit the floor?

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

solution