how come a workout with free weights demands more effort than with pulleys of the same mass , I read in a article the rotation of the pulley eases some of the effort ?
+Juan Valentin' With free weights you have to both lift and provide lateral stability so the weights don't fall right or left, so yeah it's harder. Friction could also play a part.
The tension is equal throughout the rope, there isn't a tension for mass 1 and mass 2. The tension is a constant throughout the system as long as the pully has negligible mass and resistance (friction) which is typically assumed.
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If the weight were equal on both ends , would the weight be divided by the pulley & by how much ?
+Juan Valentin' If the masses m were equal, the tension in the rope would be equal to mg on both sides.
how come a workout with free weights demands more effort than with pulleys of the same mass , I read in a article the rotation of the pulley eases some of the effort ?
+Juan Valentin' With free weights you have to both lift and provide lateral stability so the weights don't fall right or left, so yeah it's harder. Friction could also play a part.
thx bro , dope explenation too!
What if i have to find the tension of the whole system
The tension is equal throughout the rope, there isn't a tension for mass 1 and mass 2. The tension is a constant throughout the system as long as the pully has negligible mass and resistance (friction) which is typically assumed.