The bolt in the figure has two wrenches attached, as shown. 40 cm Calculate the total torque on the bolt in newton-meters produced 9.ON by the two forces. Is the torque a positive (clockwise) torque or a negative (counterclockwise) torque? NOON.M 60 cm Negative Counter clockwise 13 N6. The graph shows the position versus time for a particle that moves along the x axis. (a) Estimate the instantaneous velocity of the particle when 30 1 = 40 seconds. 20 (b) Find the average velocity of the particle between'? = 20 sec- 10 onds and / = 80 seconds. position in meters 4 05 0 0 0 m O 1 20 40 60 80 10