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.
A ball rotating in a rough floor find.
This does not mean the maths is wrong.
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.
Calculate the velocity of the centre of mass of the disc at t 0.
A g g.
After t 0 seconds it acquires a pure rolling motion.
In order to get how much the ball is rotating we need to do an operation according to its circumference.
If the ball rotates a full turn it d travel a distance equal to its circumference.
24 ball of mass m 0 5 kg is attached to the end of a string having length l 0 5 m.
Find the linear speed of the particle.
B find the angular speed of the wheels in radians per minutes.
Bouncing ball physics is an interesting subject of analysis demonstrating several interesting dynamics principles related to acceleration momentum and energy.
Almost everybody at some point in their lives has bounced a rubber ball against the wall or floor and observed its motion.
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.
Milling cutters are cutting tools typically used in milling machines or machining centres to perform milling operations and occasionally in other machine tools they remove material by their movement within the machine e g a ball nose mill or directly from the cutter s shape e g a form tool such as a hobbing cutter.
Once the pure rolling starts let v 1 and v 2 be the linear speeds of their centres of mass.
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.
So if take cross product of those two vectors we ll find the vector we are seeking.
I find it difficult to reconcile my thinking with the maths.
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.
These principles will be discussed.
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.
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.
It is then allowed to fall so that it starts rotating about pq.
A find the number of revolutions per minute the wheels are rotating.
