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ques 8

Asked by rbhatt16 20th December 2017, 11:14 PM
Answered by Expert
Answer:
The smooth surface does not mean that the friction is zero unless it is stated in the question.
 
For C) for the forward force friction will act in the backward direction resulting as tensile stress.
 
D) here the friction and applied force are toward the centre of the bar. so it develops a compression or stress.
Answered by Expert 21st December 2017, 3:29 PM
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