(PHYC-121) Week 1-10

Vector is 3.0 units in length and points along the positive xaxis; vector is 5.0 units in length and points along a direction 150° from the positive x axis. A truck moves 60 m east, then moves 110 m west, and finally moves east again a distance of 80 m. If east is chosen as the positive direction, what is the truck's resultant displacement? A ball is thrown vertically upwards at 14.7 m/s. For its complete trip (up and back down to the starting position), its average speed is:

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