Specify whether the statements are true or false. 1. Moment of a force about a point is a free vector. [ Select ]
2. A force can be moved to any point along the line of action. [ Select ]
3. The magnitude of the equivalent resultant force of a distributed load can be calculated using the centriod of the load distribution area. [ Select ]
4. The resultant force of a couple force system is zero. [ Select ]
5. Moment axis is perpendicular to the plane containing both moment arm and force. [ Select ]

Afoot bridge is made as a simple deck, 4 m long, with a cross section 2 m (wide) and 20 cm thick, and made of wood. the deck is supported at the two ends. the maximum load allowable on the bridge is 10 tons, provided it is uniformly distributed on the deck. to sense this load, a strain gauge is placed at the center of the bridge and its resistance is monitored. if the sensor has a nominal resistance of 350 s2 and a gauge factor of 3.6, what is the reading of the strain gauge at maximum load? the modulus of elasticity for the wood used in the construction is 10 gpa.