Problem 13.1

The 3 lb particle is subjected to the action of its weight and forces F1={2i+6j−2tk}lb, F2={t2i−4tj−1k}lb, and F3={−2ti}lb, where t is in seconds. 

Part A

Determine the distance the ball is from the origin 2 s after being released from rest.

Express your answer to three significant figures and include the appropriate units.

s =

138 ft