ball rolling in a cone

42. Consider a ball rolling around in a circular path on the inner surface of the cone. The weight of the ball is shown by the vector W. Without firction, only one other force acts on the ball-a normal force. (a) draw in the normal vector (how long depends on b). (b)Using the perallelogram rule, show that the resultant of the two vectors is along radial direction of the ball's circular path. (yes, the normal is appreciably larger than the weight!) (Diagram is like a cone, with a ball inside it on the right hand, there is an arrow pointing downwards from the ball which states w on it) 4. Problem: 4. A 10000 N vehicle is stalled one-quarter the way across the bridge. Calculate the additi... click for more

physics problem

Suppose the pendulum bob above has a mass of 0.33kg and is moving to the right at point b with a speed of 2.4 m/s. (a.) What is the bob's kinetic energy at point B? (b) At some point the bob will come to rest. Without doing an additional calculation, determine the change in the systems gravitational potential energy at the point the bob comes to rest. (C) Find the maximum angle the string makes with the vertical as the bob swings back and forth.

physics problem

I have all the answers to the problem, but i need someone to explain to me exactly how the ansewer to (c)in obtained, with an in depth explanation as to how to find the maximum angle the string makes with the vertical as the bob swings back and forth.

magnitude and direction of a object

Determine trigonometrically the magnitude and direction of the velocity of a plane that is flying west at 100.0km/h with respect to the air while the wind is blowing toward the north at 65.0 km/h relative to he ground.

the highest position the car reaches at the bottom of the hill

A 750 kilogram automobile is moving at 20.0 meters per second at a height of 5.0 meters above the bottom of the hill when it runs out of gasoline. The car coasts down the hill and then continues coasting up the other side unitl it comes to rest. Ignoring frictional forces and air resistance, what is the value of "h", the highest position the car reaches above the bottom of the hill?