• The Displacement of point, when the wheel completes 1/2 of a revolution .

(╬) See the attachment picture .

• Suppose, Radius of wheel = R

☞ GIVEN:-

• when 1/2 revolution is made by the wheel, the point of contact moves from “A” to “C” and hence undergo the displacement “AC” .

(╬) Now, Distance displaced by the point of contact, “AB” =

(╬) And perpendicular distance traversed by the wheel = “2R” .

☞ Therefore, Total distance is

☞ And

☞ Thus, the point of contact undergoes the displacement of magnitude “ ” make an angle “ ” with the ground .