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Grade: 12th pass
        

  ROTATIONAL MECHANICS


for a rear wheel driven bicycle,indicate the direction of friction for the front and rear wheels(forward or backward)
CONSIDER THAT THERE IS NO SLIDING ANY WHERE


 



CASE 1 :- WHEN THE REAL WHEEL BREAKES ARE APPLIED
CASE2 :- WHEN THE FRONT WHEEL BREAKS ARE APPLIED
CASE 3:- WHEN BOTH THE BREAKES ARE APPLIED                                   SIMULTANEOUSLY 


CASE 4:- WHEN THE PEDAL IS ACCELERATING IT



7 years ago

Answers : (2)

TANAYRAJ SINGH CHOUHAN
65 Points
							In all the above cases the friction acts in forward direction.
In the three cases of application of breaks the breaks tries to stop bicycle by applying force in backward direction Hence friction acts in forward direction.
And in the case of acceleration the tires pushes the earth in backward direction to move forward i.e. force is applied in backward direction and friction acts in forward direction.

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7 years ago
nikhil yadala
38 Points
							

but the answer is 

case 1        frction will be back ward on rear wheel and forwanrd on front wheel

case 2       friction will be forward on rear wheel and backward on front wheel

case 3     friction will be back wards on both wheels

 case 4    friction will be forward on rear wheel and backward on front wheel 

7 years ago
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  • Test paper with Video Solution
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  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


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