The small 5-oz slider A moves without appreciable friction in the hollow tube, which rotates in a horizontal plane with a constant angular speed of ω=7 rad/sec. The slider is launched with an initial speed of dr=60 ft/sec relative to the tube at the inertial coordinates x=6 in. and y=0. Determine the agnitude P of the horizontal force exerted on the slider by the tube just before the slider exits the tube.

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.