# A hockey puck is hit on a frozen lake and starts moving with a speed of 12

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## What is the coefficient of kinetic friction for the puck sliding on ice?

Assuming the coefficient of friction is about 0.1 for our puck on ice , using some basic kinematics and Newton’s handy laws, that gives a stopping distance of just over 1000 m when the puck is hit with a starting speed of 160 km/hr.

## What will happen to a hockey puck that is sliding along the ice if friction is acting?

What will happen to a hockey puck that is sliding along the ice if friction is acting ? The puck will move slower and slower the entire time. The puck will move at constant speed for a while and then slow down.

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## How fast was Bobby Hulls slap shot?

Hull’s slap shot reportedly was once clocked at more than 118 miles an hour (and his wrister at 105 mph — though the technology wasn’t as good), and he could skate at nearly 30 mph . It was a combination of speed and power that terrified goaltenders throughout his career.

## How fast can a hockey player hit a puck?

100 miles per hour

## Is there no friction on ice?

On one level, the difference between dancing on a floor and skating on ice is the lack of friction . Smooth ice provides very little resistance against objects, like ice skates, being dragged across its surface. Compared to, say, a wooden floor, ice has much less friction .

## Why is an ice hockey puck given an initial push continue to move?

The wet ice provides a surface that is almost free of any horizontal influences that would slow down the puck , and so if the puck is given an initial push on such a surface, it will continue to coast at a constant velocity. The rate at which your velocity is changing with time.

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## What is done to a hockey puck to reduce bouncing and friction before a meet?

Hockey pucks are frozen prior to being used in a game. Freezing the puck is also done to intentionally reduce how much it bounces during play. This enables better control of puck movement.

## Why does a hockey puck move more easily on ice than on cement?

Carpet, concrete , wood, linoleum, etc. all exert more friction on objects sliding over them than ice , as you likely saw in your experiment. A hockey puck is smooth to minimize the friction it exerts on the surface, and ice is smooth as well (at least right after the Zamboni), but that’s only part of the story here.

## How did the motion of the puck change as a result of being hit?

When a player hits the puck , it will continue moving in that state until it hits another object. Once it hits that object, the new force is applied to it, changing its direction. When players are skating and a collision happens, the player that was skating will have his direction changed .

## How does Newton’s second law apply to hockey?

Newton’s Second Law ( the law of force and acceleration) states that if the mass of an object remains the same, the acceleration will increase as the force increases. In hockey , during a slapshot, the puck’s mass remains the same but the acceleration increases as the force the player applies to the puck increases.

## How do you find the coefficient of kinetic friction?

The coefficient of kinetic friction is the ratio F/w or mg/Mg , or simply m/M. Based on the data you enter, if the m/M ratio is exactly equal to the selected μ, no motion will occur. To cause motion, you need to slightly increase m, the hanging mass, by 0.1 gram, for example .