7. A stick, mass =2 kg L= 2 m, is hinged about its end. It is initially in a vertical position. A small mass of clay, mass = 0.4 kg is initially traveling with a velocity of 16 m/s towards the stick. The clay strikes the stick at a distance of 75 cm below the hinge. The clay collides inelastically with the stick, to what angle does the stick with the clay rise after the collision? V = 16

The Beast, friend of Belle, is determined to get in shape so that he doesn’t lose Belle. He loads up a barbell with two 20 kg plates on the right side and two 20 kg plates on the left side.  The barbell is 2.2 m long and its unloaded mass is 20 kg.  The two 20 kg plates on the right side are locked in place at 35 cm and 40 cm from the right end of the bar.  Beast is unbalanced and his form is terrible so the two 20 kg plates on the left side have slipped.  One is 30 cm from the left end of the bar and the other is 20 cm from the left end of the bar.  Where is the center of gravity of this barbell with the four plates?

7

10. The drawing shows a collision between two small balls. Ball (1) has a mass of 135 g and is moving along the x-axis with a velocity of 5.40 m/s. It makes a collision with ball (2), which has a mass of 202 g and is initially at rest. After the collision, the two balls fly apart with angles as shown in the figure below (a the velocity of ball (2) after the collision? m/s 46° and ß = 58°). * m₁ m₂ a +X sf60 sf60 ss/60 ssf6 ssf60 ssf60 ssf60 sehat is the magnitude of O ssf ss500 ssf60 ssf60 ssf60 ssf60 ssf60 s sf60 ssf60 ssf60 ssf60 ssf60 50 ssf60 ssf f60 ssf60 ssf60 ssf60 ssf6 Cost ssf60 ssf60 ssfors f60 ssfoo 60 ssf60 ssf60 s16050 ssf sfoo ssf60 so