# Strategy to find speed of hockey puck at launch and as it leaves the rink

A hockey puck just clears the 2.00-m high boards on its way out of the rink. The base of the boards is 20.2 m from the point where the puck is launched. a. given the launch angle of the puck (-), outline a strategy that you can use to find its initial speed Vo.

b. use your strategy to find Vo for (-) = 15.0 degrees.

https://brainmass.com/physics/classical-mechanics/strategy-speed-hockey-puck-launch-leaves-rink-8216

#### Solution Preview

a.

In vertical direction:

Vo sin(Q) * T - (1/2)gT^2 = H = 2.00 ....(1)

where Q is the angle of launch and T is the total time of ...

#### Solution Summary

The solution explains each problem and solves for the answers.

$2.49