Question

3. A bowling ball rolls 33 m with an average speed of 2.5m/s

How many seconds did the ball roll? Show work
Round the answer to two significant digits.
a
82 seconds
b. 0.75 seconds
c. 13 seconds

Answer 1

`\large \boxed{\text{c. 13 s}}`

Step-by-step explanation:

The formula relating distance (d), speed (s), and time (t) is

d = st

`\begin{array}{rcl}\text{33 m} & = & \text{2.5 m$\cdot$s}^(-1)* t\\t & = & \frac{33}{\text{2.5 s}^(-1)}\\\\& = & \textbf{13 s}\\\end{array}\\\text{The ball rolled for $\large \boxed{\textbf{13 s}}$}`