I have a velocity of a pendulum - see please the attach Mathcad 15
How can I calculate the position x(t)-y(t) by help of integral?
What is a deferens between English speed and velocity?
I'm afraid you've put too much (initial) potential energy into your system. With theta at 180 deg, the mass is at x=0 and y=L, straight above the lowest point it can reach (x=0, y=-L). If on a rope, when let go, it will drop straight downwards , and never come up again because there's no horizontal kinetic energy. If on a stick, it will stay put.
You may want to set the initial value of theta to + or -90 deg....
It is not tread - it is a weightless hard link (a rod).
The question is - can we create functions x(t) and y(t) having vx and vy as functions not time but an angle. By help an integration!
The picture bellow - the other solution this problem thru ODEs solution
to the best of my knowledge: speed refers to the magnitude of the velocity vector and is therefore a scalar; e.g. a car has a top speed of 200 km/h. No need to say where it is going. But they can be used interchangeably in conversations.
A pendulum is a body suspended from a fixed support so that it swings freely back and forth under the influence of gravity. When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position mcdvoice