Which option is the most accurate description of speed?

1. the ball rolled down the hill in five seconds to reach the marker.

2. the ball rolled down the five meter hill in five seconds.

3. it took five seconds for the ball to be displaced five meters from the marker.

4.five seconds elapsed as the ball rolled five meters north.

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth