How do you calculate the speed of a bouncing ball?
p = m*v where P is momentum, m is mass, and v is the velocity right before the ball hits the surface. Bouncy Ball: p = m*v where P is momentum, m is mass, and v is the velocity right before the ball hits the surface.
How long do bouncy balls take to set?
It needs to be left to dry, so only one ball can be made at a time. Once the ball is dried it can be played with, ours took 30 minutes to dry.
How much energy is lost when a ball bounces?
For example, if a ball bounces 80% of its height on each bounce, then the ball is losing 20% of its energy on each bounce. The time of each bounce is about 90% of the time of the previous bounce, the ball slows down about 10% each bounce, and about 10% of the linear momentum is lost at each bounce.
How do you calculate speed after bounce?
3 Answers
- While the ball is not in contact with the ground, the height at time t after the last bounce at t0 is given by h(t+t0)=v0t−12gt2. where v0 is the velocity just after the bounce.
- During the impact, the ball will deform and there will be friction.
How do you calculate bounce force?
We are assuming 100% restitution, no K.E. loss for the bounce, so va=−vb. The average force by the ball on the floor is equal in magnitude and it is the same as when the ball is resting on the floor.
How is ball bounce measured?
Paint each of the balls with poster paint in a circle around the ball so that you can hold the ball on both sides to bounce it. Stand 1 meter from the wall. Measure this distance using a meterstick. Bounce each ball toward the wall without using any of your own force.
What ball bounces the highest?
On average, the rubber bouncy ball will bounce the highest, followed by the ping pong ball. The marble will bounce the least high.
How do you make a bouncy ball glow?
DIY How to Make Glowing Bouncy Balls – YouTube
How do you calculate energy lost?
Energy Loss Formula
To calculate the energy loss of a moving object, subtract the initial kinetic energy from the final kinetic energy, where the initial and final kinetic energies are calculated using the formula 1/2*M*V^2.
How do we calculate energy?
As every engineer knows, energy calculation is straightforward. The unit of electrical energy is the kilowatt-hour (kWh), found by multiplying the power use (in kilowatts, kW) by the number of hours during which the power is consumed. Multiply that value by the cost per kWh, and you have the total energy cost.
What force is bouncing a ball?
The forces acting on a spinning ball during impact are the force of gravity, the normal force, and the force of friction (which has in general both a ‘translational’ and a ‘rotational’ component).
How do you predict how high a ball will bounce?
If the first height is h, the second will be f*h, the third f*f*h, the fourth f*f*f*h, and so on. So if f is 0.9, the first bounce will be 0.9 times as high, the second 0.81 times as high, the third 0.729 times as high (as the original height), and so on.
How high do super balls bounce?
Drop a Super Ball from shoulder height, and it will bounce back 92 percent of the way to the drop-off point. Super Balls also are just as bouncy vertically as they are horizontally, and they spin oddly.
Do heavier balls bounce higher?
Both balls will fall at a similar speed, but because kinetic energy is proportional to the mass of the object, the heavy ball reaches Earth with more energy. It will not necessarily rebound higher, as it also needs more kinetic energy to reach a specific height again.
Do heavier bouncy balls bounce higher?
The air friction is approximately proportional to the square of the radius at high speeds, and to the radius at low speeds. So for bigger balls the ratio of gravitational to frictional force goes up, compared to small balls. That would tend to make the large balls bounce higher.
How do you make Super balls?
Combine two tablespoons of warm water and 1/2 teaspoon of borax powder. Stir to dissolve the borax. Add food coloring, if desired. You’ll have enough to make seven or eight balls.
How do you make bouncy slime?
Bouncy balls are a cool variation of our homemade slime, and everyone needs to try making homemade slime at least once.
…
YOU WILL NEED:
- 3 tbsp Clear Elmer’s School Glue.
- 1 tbsp Glitter.
- Food coloring (optional)
- 2 tbsp Borax Detergent.
- 1 cup Water.
- 2 spoons or craft sticks.
- Bowl.
How much energy is wasted?
According to the Energy Information Administration (EIA), the answer is 34%. In other words, 66% of the primary energy used to create electricity is wasted by the time the electricity arrives at the customer meter.
What is the efficiency formula?
Efficiency can be expressed as a ratio by using the following formula: Output ÷ Input. Output, or work output, is the total amount of useful work completed without accounting for any waste and spoilage. You can also express efficiency as a percentage by multiplying the ratio by 100.
How do you calculate electric time?
Electrical Energy = Power x Time. The total amount of electrical energy used depends on the total power used by all your electrical devices and the total time they are used in your home. One kilowatt hour is equal to 1000 watts of power used for one hour of time.
How do I calculate kinetic energy?
If you know the mass and velocity of an object, use the kinetic energy calculator to find it’s energy in movement.
To calculate kinetic energy:
- Find the square of the velocity of the object.
- Multiply this square by the mass of the object.
- The product is the kinetic energy of the object.
How high can a ball bounce?
The maximum height it reaches after its first bounce is 70 percent of 200 feet, or 140 feet. After the second bounce, it reaches a height of 70 percent of 140 feet, or 98 feet. In similar fashion, the ball continues to rebound to a height that is 70 percent of the highest point of the previous bounce.
How do you calculate height after bounce?
LAB- CALCULATE THE HEIGHT OF A BOUNCING BALL – YouTube
What is the bounciest ball in the world?
The Mega Bounce XTR
The Mega Bounce XTR is the bounciest ball of them all! Drop it onto a hard surface and it’ll bounce 85% of its original height (a basketball manages a measly 56%)! Throw it down as hard as you can and watch it soar way higher than a 2 story building…it really is MEGA!
Does temperature affect bouncy balls?
One factor that can influence the bounce of a ball is the temperature of the ball. A warmer ball will bounce higher than a cold one. The reason for this is twofold. In a hollow ball, the change in temperature causes a change in air pressure within the ball.