Question

in a hockey rink the goal lines are 54 meters apart. a hockey puck slides directly from one goal line to the other at 9 meters per second. if its velocity remains constant, how much time will it take the puck to slide half of the distance between the goal lines? write your answer as a whole number. seconds

Explanation:

Step1: Calculate half - distance

The total distance between goal lines is 54 meters. Half of this distance is $d=\frac{54}{2}= 27$ meters.

Step2: Use the speed - time formula

The speed formula is $v = \frac{d}{t}$, where $v$ is velocity, $d$ is distance, and $t$ is time. We know $v = 9$ m/s and $d = 27$ m. Rearranging for $t$, we get $t=\frac{d}{v}$. Substituting the values, $t=\frac{27}{9}=3$ seconds.

Answer:

3