Frequent question: How much force is required to keep a hockey puck in motion?

From Newton’s first law of motion, this scenario can be achieved without applying any external force. Thus, once it is launched, the puck will continue to move indefinitely at a constant velocity, as long as there is still no forces resisting the motion. The force required is zero.

What force is required to keep the puck moving?

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 is the net force on a hockey puck?

Hence, the net force acting on the puck is zero and it glides with constant velocity. Therefore, the forces acting on the hockey puck are normal force upwards and gravitational force downwards in vertical direction.

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Does it take a force to keep a hockey puck moving on frictionless ice?

(d)A hockey puck sliding across frictionless ice. … (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.

Which force keeps an ice hockey puck from sliding forever?

No net force means no movement, so you apply a pushing force, such as a hit from a hockey stick, which results in the puck travelling at a constant speed forever.

Is any force acting on the puck now?

ZERO: 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 kind of motion is the puck moving with?

The puck does not change direction, nor does it slow down or speed up but instead moves at a constant speed. Newton’s laws state that when the puck is at rest or coasts at a constant rate in a straight line, there is no net force acting on the puck.

What do you know about the forces on the hockey puck as it slides across the ice at a constant speed?

A hockey puck slides across the ice at a constant speed. Is it in equilibrium? … Yes, because it reaches dynamic equilibrium when it moves in a straight line with unchanging speed. The net forces are zero.

How did the change in force affect the movement of the puck?

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.

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Which of Newton’s Laws states the summation of forces?

Newton’s second law states that the vector sum of all forces acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma). Newton’s third law can be stated briefly as, “action is equal to reaction”.

What forces act on the puck as it skids across the ice?

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 magnitude of the force of friction acting on the hockey puck?

The magnitudes of the vertical forces are equal, and there is only one horizontal force, the kinetic friction, acting in a direction opposite to the puck’s velocity. The magnitude of kinetic friction acting on the puck is 0.78 N.

What’s the magnitude of force?

The magnitude of the force is defined as the sum of all the forces acting on an object. Calculating magnitudes for forces is a vital measurement of physics. The ‘magnitude’ of a force is its ‘size’ or ‘strength’, in spite of the path in which it acts.

What forces are involved in hockey?

Force, acceleration, work and energy

The horizontal forces on the body required for these motions must be provided by the ice. The horizontal force from the ice is responsible for the forward, backward and sideways acceleration of centre of mass of the skater, but can do no work.

Is a hockey puck sliding at a constant speed a balanced force?

A hockey puck slides across the ice at a constant speed. … The puck can be considered neither at rest nor in equilibrium.

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What goes in motion stays in motion?

The focus of Lesson 1 is Newton’s first law of motion – sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.