Kinematics Question 122

Question: A wheel of radius 1 meter rolls forward half a revolution on a horizontal ground. The magnitude of the displacement of the point of the wheel initially in contact with the ground it’s [BCECE 2005]

Options:

A) 2π

B) 2π

C) π2+4

D) π

Show Answer

Answer:

Correct Answer: C

Solution:

Horizontal distance covered by the wheel in half revolution = πR. So the displacement of the point which was initially in contact with ground = AA’ = (πR)2+(2R)2 = Rπ2+4

=π2+4

(AsR=1m)



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