Two boats leave the pier $P$ at the same time and travel in the directions shown in (Figure 1). $v_A = 36$ ft/s and $v_B = 30$ ft/s.
Part A
Determine the magnitude of the velocity of boat $A$ relative to boat $B$.
Express your answer to three significant figures and include the appropriate units.
$v_{A/B} = 10.5 \frac{ft}{s}$
Correct
Part B
Determine the direction angle of the velocity of boat $A$ relative to boat $B$, measured counterclockwise from the positive $x$ axis.
Express your answer using three significant figures.
$\theta = 108^\circ$
Correct
Part C
How long after leaving the pier will the boats be 1550 ft apart?
Express your answer using three significant figures.
$t = 148.04$ min
Incorrect; Try Again