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Physics 151: Lecture 26 Today’s Agenda - page 4 / 13

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Physics 151: Lecture 26, Pg 4

Example 4

A bridge of length 50.0 m and mass 8.00 x 104 kg is supported on a smooth pier at each end as in Figure below. A truck of mass 3.00 x 104 kg is located 15.0 m from one end. What are the forces on the bridge at the points of support?

Solution :

nA = 5.98 x 105 N

nB = 4.80 x 105 N :

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