ICSE Solutions for Class 10 Physics - Simple Machines - A ...
Answer: A block and tackle system of pulleys consists of two blocks of pulleys each block having one or more than one pulleys. The upper block of pulleys is fixed to a rigid support and the lower block of pulleys is movable. ... A pulley is an example of a simple type of machine. It is either a wooden or a metallic disc which can rotate about ...
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