Two supports, made of the same material and initially of equal length, are 2.5m apart. A stiff board with a length of 5m and a mass of 17kg is placed on the supports, with one support at the left end and the other at the midpoint. A block is placed on the board a distance of 1.1m from left end. As a result the board is horizontal (that is, the downward force on each support is the same). The mass of the block is .. kg, to two decimal places. ......

Two supports, made of the same material and initially of equal length, are 2.5m apart. A stiff board with a length of 5m and a mass of 17kg is placed on the supports, with one support at the left end and the other at the midpoint. A block is placed on the board a distance of 1.1m from left end. As a result the board is horizontal (that is, the downward force on each support is the same). The mass of the block is .. kg, to two decimal places. ......

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter8: Rotational Motion

Section8.3: Equilibrium

Problem 40PP

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