When we run, our body gains inertia of motion due to which it wants to be in motion continuously. When we take long jump our body has the tendency to be thrown forward more.
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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