What is the direction of impulse delivered to a bouncing ball?

In summary, the conversation discusses how to calculate the impulse delivered to a 0.60 kg basketball by the floor when it is thrown with a speed of 5.4m/s and at an angle of 65o. The ball rebounds elastically with the same speed and angle. The impulse is calculated using the equation I=^P, with ^Vx=0 and ^Vy=Vyf-Vyi=5.4m/s(cos(65o)+5.4m/s(cos(65o). The direction of the impulse remains the same, but the magnitude depends on the angle of collision.
  • #1
synergix
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0

Homework Statement


To make a bounce pass, a player throws a 0.60 kg basketball towards the floor. the ball hits the floor with a speed of 5.4m/s at an angle of 65o to the vertical. The ball rebounds elastically with the same speed and angle. Calculate impulse (magnitude and direction) delivered to the ball by the floor.

Homework Equations


if ^ is delta
I=^P

The Attempt at a Solution



^Vx=0

^Vy=Vyf-Vyi=

5.4m/s(cos(65o)+5.4m/s(cos(65o)

Impulse= ^P

I just want to confirm that the impulse delivered to the ball will all be directed vertically upward because ^Vx=0. So the angle of collision will have no effect on the direction of impulse in this case.
 
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  • #2
The direction remains the same, but the magnitude depends on the angle.
 
  • #3
Thank you
 

Related to What is the direction of impulse delivered to a bouncing ball?

1. How does the impulse affect the bouncing of a ball?

Impulse is a measure of the force and duration of an impact. When a ball hits a surface, the impulse from the impact causes the ball to compress and then rebound with an equal and opposite force. The magnitude and direction of the impulse determine the height and direction of the bounce.

2. What factors influence the impulse of a bouncing ball?

The impulse of a bouncing ball can be influenced by several factors, including the velocity and mass of the ball, the surface it bounces on, and the angle and force with which it is thrown or dropped.

3. How does the surface affect the bouncing of a ball?

The surface that a ball bounces on can greatly impact its impulse and subsequent bounce. A harder surface, such as concrete, will provide a greater impulse and therefore a higher bounce compared to a softer surface, such as grass.

4. How does the height of a bounce change with each bounce?

In an idealized scenario, the height of a bounce will decrease with each subsequent bounce due to the loss of energy from the impact and deformation of the ball. This is known as the law of conservation of energy. However, factors such as air resistance and friction can also play a role in the decrease of bounce height.

5. Can the impulse of a bouncing ball be calculated?

Yes, the impulse of a bouncing ball can be calculated using the formula impulse = force x time. The force can be determined by measuring the change in velocity of the ball upon impact, and the time can be measured using high-speed cameras or other timing devices.

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