A hockey player strikes a puck that is initially at rest....

A hockey player strikes a puck that is initially at rest. The force exerted by the stick on the puck is $1000 \mathrm{N},$ and the stick is in contact with the puck for $5.0 \mathrm{ms}(0.0050 \mathrm{s}).$ a. Find the impulse imparted by the stick to the puck. b. What is the speed of the puck $(m=0.12 \mathrm{kg}$ ) just after it leaves the hockey stick?

A hockey player strikes a puck that is initially at rest. The force exerted by the stick on the puck is $1000 \mathrm{N},$ and the stick is in contact with the puck for $5.0 \mathrm{ms}(0.0050 \mathrm{s}).$
a. Find the impulse imparted by the stick to the puck.
b. What is the speed of the puck $(m=0.12 \mathrm{kg}$ ) just after it leaves the hockey stick?

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Key Concepts

Impulse

Impulse is the product of the force applied to an object and the duration of time over which it is applied. It quantifies the effect of a force acting over a specific time interval, leading to a change in the object's momentum. In physics, impulse is a vector quantity that is equal in magnitude and direction to the change in momentum the object experiences.

Impulse?Momentum Theorem

The impulse?momentum theorem states that the impulse imparted to an object is equal to the change in its momentum. This theorem provides a direct relationship between the forces acting over a time interval and the resulting change in the motion of the object, making it a fundamental concept in dynamics and collision analysis.

Momentum

Momentum is the measure of an object's motion, defined as the product of its mass and velocity. It is a vector quantity, meaning it has both magnitude and direction. Understanding momentum is crucial, as it enables the analysis of how forces influence the motion of objects and how momentum is transferred during collisions or interactions.

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