Question

How long would it take you to swim across a lake that is 900 meters across if you swim at 1.5 m/sec?

Answer 1

600 seconds or equivalently 10 minutes

Step-by-step explanation:

Use the formula for velocity, and solve for the unknown time (t), as follows:

`v=(d)/(t) \\1.5 (m)/(s) =(900m)/(t\\)\\t*1.5 (m)/(s) =900m\\t=(900)/(1.5) s= 600 s`

Notice that all units are in the appropriate SI units, and therefore the answer for time comes in seconds.

600 seconds = 10 minutes