I'm a little confused with the application of laws of motion on a man climbing a rope. Suppose a man of mass Mg is climbing a rope with an acceleration a. Rope is massless. Now if look through the frame of the piece of rope held by the man, there is a force Mg downward by man, ma downward applied by man and T upward. This balances out as the piece is at rest. This equation is correct, though my way of looking at it maybe incorrect. Now if we look through the man's frame, we have Mg downward, T upward, ma upward the reaction by rope, and as we are in an accelerated frame, ma downward. What am I doing wrong and can you explain how is the man able to climb upward i.e. how the forces are acting to give this motion.
[Physics] Laws of motion while climbing a rope
forcesnewtonian-mechanicsstring
Best Answer
If a man moves one hand up very fast he will not be pulled down by gravity as he will using the strength. Of both hands to grip the rope again.If a man moves his hand up slowly gravity will pull him down as he is now gripping the rope with one hand