If a constant force F is applied for a short time T, and if the puck has mass m and is initially at rest, then the puck will accelerate to a speed v given by v = aT where a = F/m is the acceleration of the puck. For example, if F = 100 N, T = 0.04 s and m = 0.17 kg, then a = 588 m/s2 and v = 23.5 m/s.
Table of Contents
What force is acting to slow the puck?
This force is called friction. Friction is an external force that acts opposite to the direction of motion (see Figure 4.3). Think of friction as a resistance to motion that slows things down.
What forces are acting on the hockey puck?
For example, if I take a slap shot on a hockey puck, from what I understand, the forces acting on the puck are friction, the normal force, and the puck’s weight.
What is the physics behind hockey?
Hockey tricks rely on physics The player turns sideways to the goal, winds up with the stick behind him, and then swings through the puck. The power for the shot comes from the player transferring his weight from the back legs through the body, down the arms and right through to the stick.
When the net force that acts on a hockey puck is 10N?
When the net force that acts on a hockey puck is 10N, the puck accelerates at a rate of 50 m/s2. Determine the mass of the puck. A 15-N net force is applied for 6.0 seconds to a 12-kg box initially at rest.
What is the net force on a hockey puck?
What is the net force acting on the puck? The puck is moving at a constant velocity, and therefore it is not accelerating. Thus, there must be no net force acting on the puck.
What causes a hockey puck to slow down?
Friction is the loss of kinetic energy into thermal energy, which is why the block slows down.
Why does the puck slow down after being hit?
Friction is thus the cause of slowing (consistent with Newton’s first law). The object would not slow down if friction were eliminated. Consider an air hockey table ((Figure)). When the air is turned off, the puck slides only a short distance before friction slows it to a stop.
What is the physics application in ice hockey?
Thus, the physics taking place here is the transfer of energy from player to stick, and from stick to puck. The advantage of storing energy in the stick is that (upon release) it strikes the puck faster than the player can, causing the puck to reach a greater speed.
What provides the power that will move a puck into action?
Thus, the potential energy from the motion of the hockey stick in the player’s hands is transferred to the kinetic energy of the moving hockey puck as it accelerates. Kinetic energy is energy of motion, while potential energy is the power that will propel the puck into motion.
What is the acceleration of the hockey puck?
Is the hockey pucks motion at a constant speed?
(d)The hockey puck moves along at a constant velocity because no forces act on it. The point here is that objects can continue moving in a straight line with a constant speed even when no force acts on them.
How is math used in hockey?
To know the exact spot on the board to strike the puck, the player needs to use math calculations. A theory in math states that angle of incidence is equal to the angle of reflection. This theory helps a lot in striking the puck to the board. And is why your give-and-go with these “teammates” always works so well.
What type of friction is a hockey puck on ice?
The coefficient of friction is calculated by the ratio of the frictional force to the normal force. For example, rubber on ice (i.e. hockey puck to ice) has a coefficient of static friction ~0.06 (Ableman, 2004).
What is the coefficient of kinetic friction between ice and puck?
The coefficient of kinetic friction between the ice and the puck is ฮผk. (a) Obtain an expression for the acceleration of the puck as it slides across the ice. (b) Use the result of part (a) to obtain an expression for the distance d the puck slides. The answer should be in terms of the variables vi,ฮผk, and g only.
When the net force acts on a hockey puck is 12n?
When the net force that acts on a hockey puck is 12 N, the puck accelerates at a rate of 48 m/s2 48 m / s 2 .
How do you find net force?
- FNet = F1 + F2 + F3โฆ. + FN.
- FNet = Fa + Fg.
- FNet = Fa + Fg + Ff + FN.
What net force is needed to keep the ball in its circular path?
Since the acceleration of an object undergoing uniform circular motion is v2/R, the net force needed to hold a mass in a circular path is F = m (v2/R).
How did the motion of the puck change as a result of being hit?
When a player strikes a stationary puck, he causes the velocity of the puck to change. In other words, he makes the puck accelerate. The cause of the acceleration is the force that the hockey stick applies. As long as this force acts, the velocity increases, and the puck accelerates.
Is velocity always in the same direction as net force?
See Newton’s first law of motion. When there is a net force on an object, it causes the object to accelerate in the direction of the net force; this is not the same as the direction of the motion unless the object is going in a straight line.
Why does a rope climber have to pull down on the rope in order to move up?
The climber must pull down on the rope to counter the force of gravity on him/herself. He/she must pull with a greater force than that of gravity to lift themselves off the ground.
What causes an object to slow down?
Friction is a force that opposes the motion of objects; friction can cause objects to slow down. Air resistance is a type of friction. Air resistance causes moving objects to slow down. Different physical properties, such as the shape of an object, affect the air resistance on an object.
Why does the puck continue moving into the goal even when the force on it goes down as it moves away from the charge?
No force is required to keep the puck moving. The puck has inertia and by Newton’s 1st Law, an object moving with constant velocity will continue to move with constant velocity unless acted on by an external force.
What factors influence friction?
The frictional force between two bodies depends mainly on three factors: (I) the adhesion between body surfaces (ii) roughness of the surface (iii) deformation of bodies.
How friction concept is related to Newton’s laws of motion?
According to Newton’s first law, a body in motion tends to remain in motion at a constant velocity. However, when you slide an object across a surface, the object eventually slows down and stops. Why? The object experiences a frictional force exerted by the surface, which opposes its motion.