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When a motor car travels on a convex road the passengers inside feel lighter. Why? |
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Answer» Solution :When a motor car travels on a convex road, the resultant of the weight (W)of any passenger inside it and the upward normal force (R ) on the surface of the car supplies the necessary centripetal force to the passenger to TRAVEL ALONG the convex road (i.e.,circular path ), i.e.,W - R = `(MV^(2))/(r),` where,m = mass of the passenger, V= linear velocity of the car ANDR = radius of the circular path or,R=W - `(mv^(2))/(r) ""`....(1) Due to this normal force R, the passenger feels his weight. now, according to equation (1) , since R `lt` W, the passenger feels lighter. |
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