angular momentum of a projectile

A particle of mass M is shot with an initial velocity Vi and makes an angle theta with the horizontal. The particle moves in the gravitational field of the earth. Find the angular momentum of the particle about the origin when the particle is (a) at the highest point of the trajectory and (b) just about to hit the ground.

This problem is discussing angular momentum changes of a particle ejected from ground with initial velocity V and angle theta.

A particle of mass M is shot with an initial velocity Vi and makes an angle theta with the horizontal. The particle moves in the gravitational field of the earth. Find the angular momentum of the particle about the origin when the particle is (a) at the highest point of the trajectory and (b) just about to hit the ground.

Develop SHM equations from the motion of a point moving in a circle at constant angular velocity.

A point p moves in a circle of radius R, at constant angular velocity w. The origin of an x axis is at the center of the circle. Represent as vectors, the location, the velocity and the acceleration of point p, then show the x direction projection of these three vectors to represent the location, the velocity and the acceleratio ...continues

Given x(t) for a certain SHM, find x, v, and a at a given instant.

For a certain point executing SHM on an x axis with amplitude .40 m, the equation giving its location as a function of time is given by: (1) x = .4 m cos (6 t) a. At time t= .35 sec, find the location, the velocity and the acceleration of the moving point. b. Find the first time after t=0 that the moving point is located a ...continues

Speed of blocks on an incline

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Two balls with masses M and m

Two balls with masses M and m are connected by a rigid rod of length L and negligible mass as in Figure P10.22. For an axis of rotation perpendicular to the rod, show that the system has the minimum moment of inertia when the axis passes through the center of mass. Show that this moment of inertia is I = L2, where = ...continues

4199-phy

An object on an incline of 30 degrees is towed up the incline by an applied force of 100N. The coefficient of kinetic friction of mu=.35. The mass of the object is 10.0kg 1) Draw a sketch 2) Draw a free body diagram 3) What is the weight of the object? 4) What is the acceleration of the object in the y direction? 5) Wr ...continues

calculating the moment of inertia of a disc of unknown mass

a horizontal disc of diameter 12.0 cm is spinning freely about a vertical axis through its centre at an angular speed of 72 rev/min. a piece of putty of mass 5.0 g drops on to and sticks to the disc a distance of 4.0 cm from the centre. the angular speed reduces to 60 revs/min. calculate the moment of inertia of the disc. you sh ...continues

Potential Energy

A 5.00-kg block free to move on a horizontal, frictionless surface is attached to one end of a light horizontal spring. The other end of the spring is held fixed. The spring is compressed 0.100 m from equilibrium and released. The speed of the block is 1.20 m/s when it passes the equilibrium position of the spring. The same ...continues

Motion in the y direction

Okay Now I don't know how to approach this problem because I don't think that it will be a trajectory problem since the ball is going straight up in the air. Can you help?