A 5.00 kg firework at rest explodes into two pieces. If the 3.50 kg piece has a velocity of 3.00 m/s [W] after the explosion, then the other piece has a velocity of m/s [E]. Enter just a number with two digits (2 significant digits). Your Answer: Answer

A little fish has mass 0.400 kg and is floating motionlessly in the water, minding its own business, when a big fish (mass 2.00 kg) comes along and swallows it whole. If the big fish was gliding along at a constant velocity of 1.25 m/s before it swallowed the little fish, what will its velocity be immediately after the "collision"? O 1.04 m/s 7.50 m/s 1.50 m/s 0.250 m/s

A 2.98 kg particle has a velocity of (2.95 î - 3.91 î) m/s. (a) Find its x and y components of momentum. Py = kg-m/s Py kg-m/s (b) Find the magnitude and direction of its momentum. kg-m/s ° (clockwise from the +x axis)

47. A 2.5-kg ball travelling at 2.3 m/s to the right collides head-on elastically with a stationary ball of mass 2.0 kg. Find the velocity of each ball after the collision. (Hint: Determine the number of equations you need by counting the unknowns.)

I.  A lump of clay (m = 3.01 kg) is thrown towards a wall at speed v = 3.15 m/s.  The lump sticks to the wall.  (a) What kind of collision is it?  Is momentum conserved during this collision?  Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision.   II.  Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 3.15 m/s. (a) What kind of collision is it?  Is momentum conserved during this collision?  Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision.   III.  Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 2.24 m/s. (a) What kind of collision is it?  Is momentum conserved during this collision?  Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic…

You put an antimatter explosive in a 133 kg space rock, initially moving to the right at 34 m/s.  This time, upon detonation, the rock fractures into three pieces.  A 16 kg chunk is observed to zip off to the right (the positive direction) at 60 m/s.  A 69 kg chunk is observed to zip off to the left at 59 m/s.   Calculate the final velocity of the third chunk, in m/s. (Please answer to the fourth decimal place - i.e 14.3225)

As part of a carnival game, a ?b=0.628 kgmb=0.628 kg ball is thrown at a stack of 17.8 cm17.8 cm tall, ?o=0.363 kgmo=0.363 kg objects and hits with a perfectly horizontal velocity of ?b,i=11.3 m/s.vb,i=11.3 m/s. Suppose that the ball strikes the topmost object. Immediately after the collision, the ball has a horizontal velocity of ?b,f=3.60 m/svb,f=3.60 m/s in the same direction, the topmost object has an angular velocity of ?o=3.23 rad/sωo=3.23 rad/s about its center of mass, and all the remaining objects are undisturbed. Assume that the ball is not rotating and that the effect of the torque due to gravity during the collision is negligible. If the object's center of mass is located ?=12.5 cmr=12.5 cm below the point where the ball hits, what is the moment of inertia ?oIo of the object about its center of mass?