Question

If a hockey puck is shot across frictionless ice from half court at 35 m/s, how long does it take to reach the opponent’s goal if the court is 55 meters from goal to goal?

a) 0.78 seconds
b) 1.56 seconds
c) 2.34 seconds
d) 4.68 seconds

Answer 1

The hockey puck shot at 35 m/s across a 55-meter court on frictionless ice will take approximately 1.56 seconds to reach the opponent’s goal.

Step-by-step explanation:

To determine how long it takes for a hockey puck to reach the opponent’s goal from half court, we can use the formula for time which is time = distance ∗ speed. Given that the court is 55 meters (the distance from goal to goal) and the puck is shot at a speed of 35 m/s, we can calculate the time as follows:

time = distance ∗ speed = 55 m ∗ 35 m/s = 1.5714 seconds

Thus, the closest answer from the options given is b) 1.56 seconds.