A ball of mass M, moving with speed V, strikes the end of a motionless, uniform...
Q20 (15 points): A bullet of mass m X102 kg is moving with a speed of 100 m/s when it collides with a rod of mass mR 5 kg and length L m (shown in the figure). The rod is initially at rest, in a vertical position, and pivots about an axis going through its center of mass. The bullet imbeds itself in the rod at a distance L/4 from the pivot point. As a result, the bullet-rod system starts...
A thin rod of mass m and length l rests on a frictionless table and is struck at a point l/4 from its center of mass by a clay ball of mass m moving at speed v. The ball sticks to the rod. If the rod is free to pivot about a frictionless pin at its center, find the angular velocity of the rod after the collision. Also find the velocity of the point at the top of the rod...
A ball of mass m made of playdough moves with speed v. Another ball, of the same mass, chases the first one with the speed 2v. Eventually, they collide and stick together after the collision. What is the speed of the combined object? Ov O 3mv/2 O 3v/2 O v/2
A tennis ball of mass m = 0.057 kg and speed v = 18 m/s strikes a wall at a 45∘ angle and rebounds with the same speed at 45∘ What is the magnitude of the impulse given to the ball?
A uniform rod with a mass m and length L has one end attached to a pivot. The rod swings around on a frictionless horizontal table with angular speed wo. A ball with mass m (so same mass as the rod) is placed on the table a distance d from the pivot. The ball is made of clay so when the rod strikes it, the ball sticks to the rod (i.e., inelastic collision). If the final (post-collision) angular velocity of...
5. A ball of mass m strikes a massive wall at speed v, at an angle 0 with the normal to the wall. It bounces off with the same speed and angle. If the ball is in contact with the wall for a time t, what is the magnitude of the impulse applied to the ball by the wall? A. 2mv. B. 2mv, sino OL→î C. 2mv, cos e D. mv, tan o E. mv./t
An object of mass m moving at speed v0 strikes an object of mass 2 m which had been at rest. The first object bounces backward along its initial path at speed v 0. Is this collision elastic, and if not, what is the change in kinetic energy of the system? a) The kinetic energy decreases by mv^2. b) The kinetic energy increases by mv^2. c) The kinetic energy decreases by mv^2/2. d) The collision is elastic.
A uniform wooden meter stick has a mass of m = 799 g. A clamp can be attached to the measuring stick at any point Palong the stick so that the stuck can rotate freely about point P, which is at a distance d from the zero-end of the stick as shown. Part (a) Calculate the moment of inertia in kg-m of the meter stick if the pivot point P is at the 50-cm mark. Part (b) Calculate the moment of inertia...
A bullet of mass m = 40 g, moving horizontally with speed v, strikes a clay block of mass M=1.33 kg that is hanging on a light inextensible string of length L=0.767. The bullet becomes embedded in the block, which was originally at rest. What is the smallest value of vv which would cause the block-on-a-string to swing around and execute a complete vertical circle?
A putty ball of inertia m moving at speed v slides on a slick surface along a path that is perpendicular to the long axis of a rod of length ?and inertia 2m that is at rest on the surface. The ball collides with one end of the rod and sticks to it. Ignore any effects due to friction and use the notation l for the length of the rod ?. Part A: Just as the ball sticks, what is...