Answer Happy

5 (10 points) There is a carnival ride. It consists of a 3 meter radius drum, that rotates with tangential speed of 5 radians per second. People stand in the drum, it gets up to speed and the floor drops away. What does the coefficient of static friction between the person and the wall of the drum to keep them from falling. 5.00 rad/s F-1 FC F.-ma 3.00 m Fg - mg
Name 6 (20 points) You have a cube, 1.0 meter on a side. It is submerged in a fluid of density of 1500 kg/m'. One side (lets call it the top) is parallel with the surface and 10.0 meter below the surface. Air pressure is 1.013 *10% N/m² a What is the total force on the top. b What is the total force on the bottom. c What is the average force on each side. d What is the net force on the cube.
Name 7 (10 points) The position of an object is time is described by this equation x = 41* - 71° +21 - 81 +11 a Write an equation of the objects velocity as a function of time. b Write an equation of the objects acceleration as a function of time. + 8 (20 points) You have been out deer hunting with a bow. Just after dawn you see a large 8 point buck. It is just at the outer range of your bow. You take careful aim, and slowly release your arrow. It's a clean hit. The arrow is 0.80 meters long, weighs 0.034 kg, and has penetrated 0.18 meter. Your arrows speed was 1.32 m/s. a Was it an elastic or inelastic collision? b What was its momentum? c How long was the time of penetration? d What was the impulse? e What was the force.