A wheel (radius = 0.25 m) is mounted on a frictionless, ...

[clippers!]

A wheel (radius = 0.25 m) is mounted on a frictionless, horizontal axis. The rotational inertia of the wheel about the axis is 0.040 kgm². A light cord wrapped around the wheel supports a 0.50-kg object as shown in the figure. The object is released from rest. What is the magnitude of the acceleration of the 0.50-kg object?
 
 
 
   
  a.
  3.0 m/s²
   
  b.
  3.4 m/s²
   
  c.
  4.3 m/s²
   
  d.
  3.8 m/s²
   
  e.
  2.7 m/s²

Question 2

Exhibit 11-1
  Two birds of prey hurtling after the same mouse collide in mid-air and grab each other with their talons. Each 250-g bird is flying at 30 m/s at a 60 angle to the ground.
 
 
 
  Use this exhibit to answer the following question(s).
  Refer to Exhibit 11-1. What is the horizontal component of their momentum, in , immediately after the collision?
   
  a.
  0
   
  b.
  6.1
   
  c.
  7.5
   
  d.
  13
   
  e.
  15

[stillxalice]

Answer to Question 1

c

Answer to Question 2

a

[clippers!]

Great answer, keep it coming

[jackie]

Wow, this really help