Which of these statements best describes the motion of the cannonball after it is fired from the cannon?

The next 4 questions refer to this scenario: In this diagram we look down on a hockey puck sliding, with constant velocity, from point a to point b along a frictionless horizontal surface. When the puck reaches point b, it receives an instantaneous horizontal “kick” in the direction of the heavy arrow.

Along which segment does gravity do the most work?

After twenty seconds, will the rocket’s acceleration be larger than, the same as, or less than it was when the rocket began its journey? Why?

What is the sign of the velocity of the particle at point D?

Along which of the paths below will the hockey puck move after receiving the kick? Image Description The kick force to the puck is given horizontally from the left. Following are the options given. A. The puck goes straight up from the impact. B. The puck goes diagonally up and to the right. C. The puck goes up, then curves to the right. D. the puck curves to the right, then goes up. E. The puck curves up to the right.

The next 5 questions refer to this scenario: David is attempting to hit Goliath with a stone. David’s stone has a mass of 0.250 kg and he is swinging it around his head in a horizontal circle with an angular velocity of 20.0 rad/s. (r = 0.50m). Image Description Simple drawing of David and Goliath. David is whirling the slingshot around his head, with evenly spaced points labeled on the circle: a is above David’s head, B halfway to horizontal, c is to the right of David’s head, D is halfway to vertical, E is under David’s arm. “r” indicates the radius of the circle.

At the moment the ball is passing through its equilibrium position at the bottom of its swing, what do we know about the relationship between the tension in the cable, T, and the weight of the ball, W?

If the strings on the sling slip a little in David’s hands, so that the radius of the circular orbit becomes greater, what happens to the moment of inertia of the stone in its motion?

The direction of the acceleration of the block, when in position III (after leaving the ramp), is best represented by which of the arrows in the diagram?