Particles (mass of each = 0.40 kg) are placed at the 60-cm and ...

[torybrooks]

Particles (mass of each = 0.40 kg) are placed at the 60-cm and 100-cm marks of a meter stick of negligible mass. This rigid body is free to rotate about a frictionless pivot at the 0-cm end. The body is released from rest in the horizontal position. What is the magnitude of the initial linear acceleration of the end of the body opposite the pivot?
 a. 15 m/s2
  b. 9.8 m/s2
  c. 5.8 m/s2
  d. 12 m/s2
  e. 4.7 m/s2

Question 2

Particles (mass of each = 0.20 kg) are placed at the 40-cm and 100-cm marks of a meter stick of negligible mass. This rigid body is free to rotate about a frictionless pivot at the 0-cm end. The body is released from rest in the horizontal position. What is the initial angular acceleration of the body?
 a. 12 rad/s2
  b. 5.9 rad/s2
  c. 8.4 rad/s2
  d. 5.4 rad/s2
  e. 17 rad/s2

[k2629]

Answer to Question 1

D

Answer to Question 2

A

[torybrooks]

Excellent

[cpetit11]

TYSM