A Wheel of circumference C is at rest on the ground.When the wheel rolls forward through half a revolution ,then the displacement of point contact will be

A Wheel of circumference C is at rest on the ground.When the wheel rol

1.	A Wheel of circumference C is at rest on the ground.When the wheel rolls forward through half a revolution ,then the displacement of point contact will be
Answer» `C SQRT(1/pi^2+1/4)` `c/2` `pisqrt(c^2+4)` `c sqrt(1/pi+1/2)` ANSWER :A