How do you calculate coefficient of restitution?

Analysis. Coefficient of Restitution = speed up/speed down. Where v = velocity, g = 9.8m/s2, and h = average height measured. We took the average of the bounced height value (h) and put it in the formula along with the initial height (H) of 92 cm.

Why coefficient of restitution is dimensionless quantity?

During physical contact between bodies during impact its line along common normal to pair of surfaces in contact of colliding bodies. Hence e is defined as a dimensionless one-dimensional parameter.

What is restitution physics?

noun Physics. the ratio of the relative velocity after impact to the relative velocity before the impact of two colliding bodies, equal to 1 for an elastic collision and 0 for an inelastic collision.

What is coefficient of restitution class 11 physics?

The coefficient of restitution is defined as the ratio of the final velocity to the initial velocity between two objects after the collision. The coefficient of restitution is essentially a measure of the restitution of a collision between two objects that is how much of the energy remains after the two bodies collide.

What is the SI unit of coefficient of restitution?

coefficient of restitution ​has no unit, it is a dimensionless ratio. Explanation: Coefficient of restitution ​(COR) is the ratio of the relative velocity of an object after collision to the relative velocity of the object before collision. COR generally lies between 0 to 1 for most of the conditions.

What has the highest coefficient of restitution?

Super Ball
The Super Ball has an almost perfect coefficient of restitution and does things other balls do not. Baseballs, for example, hardly bounce at all.

What is the dimensional formula of EMF?

Therefore, Electromotive Force or EMF is dimensionally represented as [M1 L2 T-3 I-1].

What is the unit of coefficient of restitution?

What is SI unit of coefficient of restitution?

What is coefficient of restitution significance?

Coefficient of restitution is typically considered as an appropriate measure of bat performance as it has a significant effect on the post-impact velocity of the ball. It represents the ratio of the relative velocity between the ball and bat immediately after impact and immediately before impact.

What is the maximum coefficient of restitution?

The coefficient of restitution provides us with information about the elasticity of the collision. Collisions in which there is no loss of overall kinetic energy is known as a perfectly elastic collision. This type of collision has the maximum coefficient of restitution of e = 1.

What is the formula for the coefficient of restitution?

From the formula of the coefficient of restitution, we get to know that the coefficient of restitution is the ratio between the velocity of separation to the velocity of the approach. This coefficient of restitution can also be written as relative velocity after the collision to the relative velocity before the collision.

What is the coefficient of restitution of a perfectly inelastic collision?

It normally ranges from 0 to 1 where 1 would be a perfectly elastic collision. A perfectly inelastic collision has a coefficient of 0, but a 0 value does not have to be perfectly inelastic. It is measured in the Leeb rebound hardness test, expressed as 1000 times the COR, but it is only a valid COR for the test,…

What is the coefficient of restitution for a basketball?

A basketball’s COR is designated by requiring that the ball shall rebound to a height of between 960 and 1160 mm when dropped from a height of 1800 mm, resulting in a COR between 0.53–0.64. In the case of a one-dimensional collision involving two objects, object A and object B, the coefficient of restitution is given by:

What is the predicted coefficient of restitution for titanium?

Predicting from material properties Metals and Ceramics: Predicted COR, e tungsten carbide 0.73 to 1.13 stainless steel 0.63 to 0.93 magnesium alloys 0.5 to 0.89 titanium alloy grade 5 0.84