A Ball Rotating In A Rough Floor Find

For a rough surface at a particular angle there will be more friction than if the same material has a smooth surface i am sure their is an exception to this but that is a special case yet f it seems to be fixed for a particular angle.

A ball rotating in a rough floor find.

A find the number of revolutions per minute the wheels are rotating. After t 0 seconds it acquires a pure rolling motion. This does not mean the maths is wrong. Find a vector which is perpendicular to both vec and z vectors.

B find the angular speed of the wheels in radians per minutes. It is then allowed to fall so that it starts rotating about pq. I find it difficult to reconcile my thinking with the maths. A uniform disc of mass m and radius r is projected horizontally with velocity v 0 on a rough horizontal floor so that it starts off with a purely sliding motion at t 0.

If the ball rotates a full turn it d travel a distance equal to its circumference. A disk with a mass of 18 kg a diameter of 50 cm and a thickness of 8 cm is mounted on a rough horizontal axle as shown on the left in the figure. So if take cross product of those two vectors we ll find the vector we are seeking. A ball is attached to a horizontal cord of length l whose other end is fixed if the ball is released what will be its speed at the lowest point of its path.

In this paper the equations of motion governing the trajectory of a rotating spherical projectile have been developed with the aim of applying them to ball games. A g g. A solid sphere and a hollow sphere of equal mass and radius are placed over a rough horizontal surface after rotating it about its masss centre with same angular velocity ω 0. 24 ball of mass m 0 5 kg is attached to the end of a string having length l 0 5 m.

Once the pure rolling starts let v 1 and v 2 be the linear speeds of their centres of mass. The projectile is assumed to be rotating about an arbitrary axis in the presence of a wind blowing with respect to the coordinate system in an arbitrary direction. Calculate the velocity of the centre of mass of the disc at t 0. Bouncing ball physics is an interesting subject of analysis demonstrating several interesting dynamics principles related to acceleration momentum and energy.

Answer using g for acceleration due to gravity and l as necessary i got this one to be the square root of 2gl a peg is located a distance h directly below the point of attachment of the cord. 50 a uniform disk of mass m and radius r is projected horizontally with velocity v 0 on a rough horizontal floor so that it starts off with a purely. Find the linear speed of the particle. Almost everybody at some point in their lives has bounced a rubber ball against the wall or floor and observed its motion.