Amotorboat traveling 4 m/s, east encounters a current traveling 3.0 m/s, north. a) what is the resultant velocity of the motorboat? b) if the width of the river is 80 meters wide, then how much time does it take the boat to travel shore to shore? c) what distance downstream does the boat reach the opposite shore?

Explanation:

It is given that,

Velocity in East,

Velocity in North,

(a) The resultant velocity is given by :

(b) The width of the river is, d = 80 m

Let t is the time taken by the boat to travel shore to shore. So,

t = 16 seconds

(c) Let x is the distance covered by the boat to reach the opposite shore. So,

x = 48 meters

Hence, this is the required solution.

be subject to a force andchange its motion

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)