Comparing Impulse in Collisions: Which Ball Experiences a Greater Magnitude?

In summary, the question asks which ball experiences a greater impulse when they collide with the floor. The given information is that both balls have equal mass and are dropped from the same height, with the red ball rebounding to a higher position. The equation relating impulse to momentum is impulse = force * change in time. Based on this, the answer is b, as both balls have the same change in momentum and therefore experience the same magnitude of impulse.
  • #1
kallisti
2
0

Homework Statement


2 equal mass balls (one red one blue) are dropped from the same height and rebound off the floor. the red ball rebounds to a higher position. which ball is subjected to the greater magnitude of impulse during its collision with the floor?

a. it's impossible to tell since time intervals and forces are unknown.
b. both balls were subjected to the same3 magnitude impulse.
c. blue
d. red


Homework Equations



impulse = f*deltat

The Attempt at a Solution



i think the answer is b, but I'm not sure
 
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  • #2
kallisti, welcome to PF! What's the equation that relates impulse to momentum?
 
  • #3
impulse equals change in momentum.

so are they the same, since momentum is conserved?
 

1. What is impulse?

Impulse is the change in momentum of an object over a specific period of time. It is calculated by multiplying the force acting on an object by the time the force is exerted.

2. How does impulse affect the bouncing of a rubber ball?

When a rubber ball is bounced, impulse plays a crucial role in determining how high the ball will bounce. The greater the impulse, the higher the ball will bounce. This is because a larger impulse means a greater change in momentum, which results in a larger force being exerted on the ball.

3. What is the relationship between impulse and the elasticity of a rubber ball?

The elasticity of a rubber ball, or its ability to deform and then return to its original shape, is directly related to the impulse it receives. A more elastic ball will experience a greater change in momentum and therefore a larger impulse. This results in a higher bounce compared to a less elastic ball.

4. How does the surface affect the impulse of a rubber ball?

The surface on which a rubber ball is bounced can impact the impulse it receives. A harder surface, such as concrete, will result in a larger impulse and a higher bounce compared to a softer surface, such as carpet.

5. Can the impulse of a rubber ball be manipulated?

Yes, the impulse of a rubber ball can be manipulated by changing the force with which it is bounced or the duration of the force. For example, a harder throw or a longer contact time with the ground will result in a larger impulse and a higher bounce.

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