Answers

2014-11-12T22:28:38+05:30
The original use for pulleys is to make it easier to lift heavy items. The pulley is a simple machine made with a wheel and a rope, cord, or chain. .
1 5 1
2014-11-12T22:33:40+05:30
Pulley is a device which multiplies the force applied by applying the same tension on two or more stings and these tensions get added up and will yield a higher force. It is basically used to lift heavy things with ease.
1 5 1
Comment has been deleted
Comment has been deleted