Because of the friction between brake pads and rim.Friction applys a forse opposed to the moving direction of rim
It is difficult to move a cycle with the brakes on because the brakes create friction between the brake pads and the wheel, which resists the motion of the wheel. This friction reduces the efficiency of pedaling and makes it harder to propel the bike forward.
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Explain what is meant by the fetch-execute cycle and describe its action in RLT?" Explain what is meant by the fetch-execute cycle and describe its action in RLT?"
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It is difficult for the same reason it takes more of a physical effort to cycle against a headwind. A headwind is trying to push us backwards, slowing our forward progress. With a tailwind, the wind is helping us to row a boat or cycle faster as it pushes us along from behind. A headwind causes air friction to increase.
An instruction cycle is the rudimentary operation cycle of any computer. It involves the CPU fetching a program from memory and executing it fully.
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