Question
Wheels are added to trolleys for smooth travel. What is the principle behind this?
Answer: Option B
:
B
Wheels are added to trolleys to reducefriction. As rolling friction is lesser than sliding friction, adding wheels to trolleys reduces opposition to motion.
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:
B
Wheels are added to trolleys to reducefriction. As rolling friction is lesser than sliding friction, adding wheels to trolleys reduces opposition to motion.
Was this answer helpful ?
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