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Question1

A puck of mass m1 = 76.0 g and radius r1 = 4.40 cm glides across an air table at a speed of = 1.50 m/s. It makes a glancing collision with a second puck of radius r2 = 6.00 cm and mass m2 = 140 g (initially at rest) such that their rims just touch. Since their rims are coated with instant-acting glue, pucks stick together and rotate after the collision.

(a) What is magnitude of the angular momentum of the system relative to the center of mass?

(b) What is an angular speed about the center of mass? 

Question2

A 50.0-kg stunt pilot who has been diving her airplane vertically pulls out of the dive by changing her course to a circle in a vertical plane. a) If plane's speed at the lowest point of the circle is 95.0m/s, what is the least radius of the circle for the acceleration at this point not to exceed 4.00g? b) What is apparent weight of the pilot at the lowest point of the pullout?

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  • Category:- Physics
  • Reference No.:- M9134066

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