Question on impulse, does it assume elastic collision?

Collision_of_a_point_mass_with_a_rigid_bodyIn summary, the conversation discusses a problem related to hitting a golf ball at a velocity of 76.2 m/s and the factors involved in calculating the force required, including the mass of the ball, time of interaction, and coefficient of restitution. The question of whether the collision can be assumed to be perfectly elastic with a coefficient of restitution of .65 is also brought up.
  • #1
SEMonChron
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A problem I am working on for a project...
Force required to hit a golf ball 76.2 m/s
Does the impulse assume the collision is perfectly elastic?

I am doing a problem on golf...

mass of golf ball .0459 kg
velocity of ball is 76.2 m/s
time of interaction is .0005 seconds
coefficient of restitution is .65 (how efficient the collision is)


impulse - F(∆t)



F=6998 N
but would the force actually be 10766N (6998/.65) since the coefficient of restitution is .65?
 
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  • #2

1. How is impulse defined in physics?

Impulse is defined as the measure of the change in momentum of an object. It is equal to the force applied to an object multiplied by the time over which it is applied.

2. What is an elastic collision?

An elastic collision is a type of collision in which both the kinetic energy and momentum of the objects involved are conserved. This means that the total energy and momentum before the collision are equal to the total energy and momentum after the collision.

3. Does an impulse only occur in elastic collisions?

No, an impulse can occur in any type of collision. However, in an elastic collision, the impulse is equal to the change in momentum of the objects involved.

4. How is the principle of conservation of momentum applied in an impulse?

The principle of conservation of momentum states that the total momentum of a system remains constant, unless an external force is applied. In an elastic collision, the impulse is equal to the change in momentum of the objects, which follows the principle of conservation of momentum.

5. How is the coefficient of restitution related to an impulse?

The coefficient of restitution is a measure of the elasticity of a collision. In an elastic collision, the coefficient of restitution is equal to 1, meaning that the objects bounce off each other with no loss of energy. The impulse is directly related to the coefficient of restitution in an elastic collision.

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