Question

On a pleasure cruise a boat is traveling relative to the water at a speed of 5.0 m/sec due south. Relative to the boat, a passenger walks. Toward the back of the boat at a speed of 1.5 m/sec.

(a) What is the magnitude and direction of the passenger’s velocity relative to the water?
(b) How long does it take for the passenger to walk a distance of 27 m on the boat?
(c) How long does it take

Answer 1

Answer:

Explanation:

Given

Velocity of boat w.r.t water $v_{bw}=5 m/s$

Velocity of Person w.r.t boat $=-1.5 m/s$ as walk towards the back

$v_{bw}=v_b-v_w$

$v_{pb}=v_{p}-v_{b}$

thus $v_{p}=5-1.5=3.5 m/s$

(b)Time taken by Passenger to walk 27 m on the boat

$t=\frac{27}{3.5}=7.71 s$