PHYSICS

posted by .

A girl rows 10 km downstream in 2 h. Her return trip takes 3 h. How fast is the current. in km/

  • PHYSICS -

    v = her speed
    c = current speed
    (v+c) * 2 = 10
    (v-c) * 3 = 10

    v + c = 5 = 15/3
    v - c = 10/3
    --------------subtract
    2 c = 5/3
    c = 5/6

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math 116

    A Coast-Guard patrol boat travels 4 hr on a trip downstream with a 6-mph current. The return trip against the same current takes 5 hr. Find the speed of the boat in still water
  2. Math

    Sam rows up a river to camp in 3 hours. The next day he makes the return trip downstream in 1 hour. If he can row 2 mph in still water, how fast is the current?
  3. Math

    3). Sam rows up a river to camp in three hours. The next day he makes the return trip downstream in one hour. If he can row two mph in still water, how fast is the current?
  4. algebra

    could you please show me how to do this problem?
  5. algebra1

    Sam rows up a river to camp in three hours.The next day he makes the return trip downstream in one hour. If he can row two mph in still water, how fast is the current?
  6. phisecs

    A girl rows 11 km downstream in 2 h. Her return trip takes 4 h. How fast is the current. in km/h?
  7. phisecs

    A girl rows 11 km downstream in 2 h. Her return trip takes 3 h. How fast can she row in still water. in km/h?
  8. PHYSICS

    A girl rows 10 km downstream in 2 h. Her return trip takes 4 h. How fast can she row in still water. in km/h?
  9. Algebra

    5.) A boat makes a trip downstream in 5 hours. The return trip against the current takes 12 hours. If the speed of the current is 3 1/2 km/h, what is the speed of the boat in still water?
  10. Uniform Motion

    A certain fish requires 3 hrs to swim 15km downstream. The return trip upstream takes 5 hrs. What is the speed of the fish still in water?

More Similar Questions