Impulse Word Problem: Find Momentum & Impulse

In summary, the conversation discusses the impulse exerted by a wall on a ball and the impulse exerted by a larger ball on a smaller ball. In the first scenario, a 12.5 ball with a speed of 32.4 m/s strikes a wall and rebounds with the same speed. The question asks for the impulse exerted by the wall on the ball. In the second scenario, a 12.5 g ball traveling at 3.4 m/s strikes the center of a 29.5 g ball with the same radius. The balls are in contact for 43.1 milliseconds and the first ball rebounds with a 20% loss of speed. The questions ask for the impulse exerted by the second ball
  • #1
silviamar21
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Homework Statement


A 12.5 ball traveling at a speed of 32.4 m/s strikes a wall and rebounds with the same speed. What is the impulse exerted by the wall on the ball?

Part II A 12.5 g ball is traveling at a speed 3.4 m/s strikes the center of a 29.5 g ball of the same radius. The balls are in contact for 43.1 milliseconds and the first ball rebounds with a loss of 20% of its speed. What is the impulse exerted by the second ball on the first? B) What is the momentum of the second ball after the collision


Homework Equations





The Attempt at a Solution

 
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  • #2
Silviamar21

You must list what you believe are the relevant equations and show an attempt at a solution before someone can assist. These are the rules of this forum.
 

What is the difference between momentum and impulse?

Momentum is a measure of an object's motion, determined by its mass and velocity. It is a vector quantity, meaning it has both magnitude and direction. Impulse, on the other hand, is a force applied to an object over a period of time, resulting in a change in the object's momentum.

How do you calculate momentum in a word problem?

Momentum is calculated by multiplying an object's mass by its velocity. In a word problem, you will be given the mass and velocity of the object, and you simply need to plug these values into the equation. The resulting momentum will have units of kg*m/s.

What is the formula for impulse?

The formula for impulse is force multiplied by time, or J = F * t. Force is measured in Newtons (N) and time is measured in seconds (s), so the unit for impulse is N*s.

How does impulse affect an object's momentum?

Impulse is directly proportional to the change in an object's momentum. This means that the greater the impulse, the greater the change in momentum. In other words, a larger force applied over a longer period of time will result in a greater change in momentum.

How can I use impulse and momentum to solve real-world problems?

Impulse and momentum are important concepts in many fields, including physics, engineering, and sports. They can be used to analyze collisions, calculate the force needed to move an object, and understand the motion of objects in various scenarios. By understanding these concepts, you can apply them to solve real-world problems and make predictions about the behavior of objects.

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