ICSE and ISC semester 1 exams to be held in November 2021 is postponed. New datesheet will be released later. It is now assumed that exam will be in offline mode.
Which is always constant for a machine of given design: MA or VR ? Ans: VR remains constant for a machine of given design as it depends on the distances moved by the load and effort but MA can vary due to the friction developed between the moving parts of the machine.
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