Chapter 9 2 1 Based on the chosen coordinate which of the following answers is correct a Pd1 x 0 Pd2 y 0 Pg y 0 b Pd1 x 0 Pd2 y 0 Pg y 0 c Pd1 x 0 Pd2 y 0 Pg y 0 d Pd1 x 0 Pd2 y 0 Pg y 0 Vi 95mi h 42 47m s m 0 145 kg Vf 51 41m s Calculate the impulse given to the ball Chapter 10 The period of the minute and second needle watch are a 3600 s and 60s a 60s and 3600s c the same Conceptual 10 3 The solid sphere and a hollow sphere of the same mass M and radius R roll without slipping at the same speed Is the kinetic energy of the solid sphere a more than b less than or c the same as the kinetic energy of the hollow sphere Moment of inertia of solid sphere is 2MR2 5 and of the hollow sphere is 7MR2 5 Chapter 11 Static Equilibrium Conceptual check point 11 3 Does an object moving in a straight line have non zero angular momentum a always b sometime c never p The HW 10 is deadline has been delayed to Friday 04 10 The third exam will be on Monday 04 13 Conservation of angular momentum f i b f i c f i a
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