What is the difference between head on collision and oblique collision?
When the line joining the center of masses of two bodies is not parallel to the direction of their velocities then a collision is said to be an oblique collision and if it is parallel then it is called unidirectional collision or head-on collision.
Is oblique collision elastic or inelastic?
A body makes an oblique elastic collision with another body of the same mass at rest. After collision, they will move in a mutually perpendicular direction, how? 1. Conservation of Momentum – momentum is always conserved.
How do you find the coefficient of restitution in an oblique collision?
Typically, the x-axis is defined along the line of impact and the y-axis is in the plane of contact perpendicular to the x-axis. = 2 m/s. The coefficient of restitution at B is e = 0.
What factors affect coefficient of restitution?
The coefficient of restitution depends to a large extent on the nature of the two materials of which the colliding objects are made. It is also affected by the impact velocity, the shape and size of the colliding objects, the location on the colliding objects at which the collision occurs, and their temperatures.
Does the coefficient of restitution change?
The coefficient of restitution is based on the surface properties of the ball and surface it collides with. So for a given ball the coefficient will be different for different surfaces it collides with, in this sense it changes.
What is coefficient of restitution What is its significance?
The coefficient of restitution (COR) also denoted by (e) is the ratio of the final to initial relative velocity between two objects after they collide. It normally ranges from 0 to 1 where 1 would be a perfectly elastic collision.
What is the coefficient of restitution of a tennis ball?
The coefficient of restitution (COR) for a ball bouncing off a fixed surface is defined as the ratio of the velocity of a ball after it bounces to the velocity of the ball before it bounces. This means that, ignoring the effects of air resistance, a regulation tennis ball would have a COR of between 0.728 and 0.759.
How does temperature affect the coefficient of restitution of a tennis ball?
The temperature of the ball influences its coefficient of restitution. A warmer ball will bounce higher than a cold one. There are two reasons for this. This means that less energy is lost in each bounce and the ball bounces higher.
Does temperature affect bounce height?
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.