Question
In the following figure force F is gradually increased from zero. Draw the graph between applied force F and tension T in the string. The coefficient of static friction between the block and the ground is μs.
Answer: Option A
:
B
As the external force F is gradually increased from zero it is compensated by the friction and the string bears no tension. When limiting friction is achieved by increasing force F to a value tillμsmg, the further increase in F is transferred to the string.
When[F<μsmg;The friction is static and T = 0F≥μsmg;T=F−μsmg]
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:
B
As the external force F is gradually increased from zero it is compensated by the friction and the string bears no tension. When limiting friction is achieved by increasing force F to a value tillμsmg, the further increase in F is transferred to the string.
When[F<μsmg;The friction is static and T = 0F≥μsmg;T=F−μsmg]
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