A particle of mass m is projected with initial speed u at an angle of 45 degree with the horizontal.What is the torque of the force on the object about point of projection at the highest point?
1 Answer
Jan 7, 2018
Given that a particle of mass m is projected with initial speed u at an angle of 45 degree with the horizontal.
So the vertical and horizontal components of velocity of projection are
If the time to reach at maximum height be
Where g is the acceleration due to gravity.
Horizontal displacement during this time will be
This
Hence the the magnitude of torque on the particle at this position will be