Answer:
1.01 minutes
Step-by-step explanation:
The length of the roll is given to be 304 ft, and Bob's velocity is 5ft/s.
Velocity is defined as the rate of change of displacement over time t:
[tex]v=d/t\\[/tex]
The function can be expressed to make t the subject to calculate time taken by Bob;
[tex]v=d/t\\\therefore t=d/v, d=304, v=5\\\\t=\frac{304}{5}\times \frac{1}{60}\ min\\\\t=1.01 \ min[/tex]
Hence, it takes Bob 1.01 minutes to walk the length of the roll.