
#1
Oct407, 12:39 AM

P: 139

If a force is applied at centre of mass the object will only translate and not rotate. Can anyone proove this mathematically?




#2
Oct407, 01:30 AM

P: 184

Torque is the cross product of the vector from the center of mass to the point where the force is applied (r), and the force. If r is zero, or r is parallel to the force, there will be no torque, and so no rotational force.



Register to reply 
Related Discussions  
centre of mass vs. centre of gravity  Classical Physics  1  
Free body diagram involving normal force, gravitational force, and applied force.  Introductory Physics Homework  4  
HELP : Centre of mass and Centre of gravity  Introductory Physics Homework  5  
Centre of Mass  Advanced Physics Homework  1  
Min/Max angle of a force applied to stationary mass.  Introductory Physics Homework  4 