The graph shows the x-directed force Fx acting on an object as a function of the position x of the object. For each numbered interval given, find the work W; done on the object. 1) from x = 0 m to x = 2.90 m W = 2) from x = 3.00 m to x = 6.30 m W = 3) from x = 7.00 m to x = 9.30 m W3 = J J F (N) 6 4- 2. 3 -2 -4 J -6 8 9 10 x(m) A block of mass m = 353 g is dragged with a string across a rough horizontal table. The string tension is T = 3.27 N, and it pulls upward at an angle of = 45.0 with the horizontal. At one particular instant, the block is moving at a speed of v = 6.70 m/s. The coefficient of kinetic friction between the block and the table is k = 0.684. m 15 What is the power Pr supplied to the block by the string tension? W Pr= What is the power Pr supplied by the force of friction? At this instant, the block's speed is increasing. constant. decreasing. impossible to determine. W P =