Question

A marble rolls across a table for 6 meters in 2.3 seconds. What is the velocity of the marble?

Answer 1

Answer:

$\boxed {\tt v\approx2.61 \ m/s}$

Explanation:

Velocity can be found by dividing the displacement by the time.

$v=\frac{d}{t}$

The displacement is 6 meters and the time is 2.3 seconds.

$d= 6 \ m\\t= 2.3 \ s$

Substitute the values into the formula.

$v=\frac{6 \ m}{2.3 \ s}$

Divide.

$v=2.60869565 \ m/s$

Let's round to the nearest hundredth. The 8 in the thousandth place tells us to round the 0 to a 1.

$v\approx2.61 \ m/s$

The velocity of the marble is about 2.61 meters per second.

Answer 2

Answer:

2.61 $\frac{m}{s}$

Explanation:

v= d/t

v = 6m/2.3 s

v=2.61 $\frac{m}{s}$