Answer Happy

A 0.0110-kg bullet is fired straight up at a falling wooden block that has a mass of 3.59 kg. The bullet has a speed of 651 m/s when it strikes the block. The block originally was dropped from rest from the top of a building and had been falling for a time t when the collision with the bullet occurs. As a result of the collision, the block (with the bullet in it) reverses direction, rises, and comes to a momentary halt at the top of the building. Find the time t. Number i .12 Units
By accident, a large plate is dropped and breaks into three pieces. The pieces fly apart parallel to the floor. As the plate falls, its momentum has only a vertical component, and no component parallel to the floor. After the collision, the component of the total momentum parallel to the floor must remain zero, since the net external force acting on the plate has no component parallel to the floor. Using the data shown in the drawing find (a) the mass of piece 1 and (b) the mass of piece 2. 3.00 m/s 25.0 2 m3= 1.30 kg 3.07 m/s 1.79 m/s 45.0°
and no component paraner to the floor. Anter the collision, the component of the total momentum parallel to the floor must remain zero, since the net external force acting on the plate has no component parallel to the floor. Using the data shown in the drawing find (a) the mass of piece 1 and (b) the mass of piece 2. (b) 3.00 m/s B 25.0 1 (a) Number i 3=1.30 kg 2 Number i 3.07 m/s eTextbook and t4cdia 1.79 m/s 45.0⁰ Units Units ()
The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.0170 kg and is moving along the x axis with a velocity of +5.00 m/s. It makes a collision with puck B, which has a mass of 0.0340 kg and is initially at rest. The collision is not head-on. After the collision, the two pucks fly apart with the angles shown in the drawing. Find the speed of (a) puck A and (b) puck B. At rest (a) Number i B Before collision (b) Number i B 65 37 eTextbook and Media B After collision Units Units () <>