When a cylindrical body rolls down on an inclined plane, then why is it said to be combination of rotational & translational motion?
Thank you....
Perhaps, this is true for the horizontal plane also.
This is so because as the cylindrical body rolls, there is obviously a forward motion of its centre of mass, hence translational. It is rotational because the mass is "rolling"(kind of rotating about its own centre of mass),hence a circular motion, hence it is rotational also.
That is why the total kinetic energy is also a sum a rotational kinetic energy (
I Undetermined error: @@w^2@@ ) and the translational kinetic energy ( m Undetermined error: @@v^2@@ ).
This is so because as the cylindrical body rolls, there is obviously a forward motion of its centre of mass, hence translational. It is rotational because the mass is "rolling"(kind of rotating about its own centre of mass),hence a circular motion, hence it is rotational also.
That is why the total kinetic energy is also a sum a rotational kinetic energy (
I Undetermined error: @@w^2@@ ) and the translational kinetic energy ( m Undetermined error: @@v^2@@ ).
Thanks.............