Register
A boat can go 119 mph in still water. it takes as long to go 320 miles upstream as it does to go downstream 360 miles how fast is the current?
44.4k views
1 vote
A boat can go 119 mph in still water. it takes as long to go 320 miles upstream as it does to go downstream 360 miles how fast is the current?

User FalcoGer
by
4.7k points

1 Answer

1 vote

Speed of current is 7 mph

Step-by-step explanation:

Let v be speed of current,

We have speed of boat = 119 mph

Upstream speed = 119 - v

Downstream speed = 119 + v

Time for upstream 320 miles = Time for downstream 360 miles


(320)/(119-v)=(360)/(119+v)\\\\(8)/(119-v)=(9)/(119+v)\\\\17v=119\\\\v=7mph

Speed of current is 7 mph

User Bjauy
by
4.7k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.1m questions

6.7m answers

Other Questions

A space shuttle is approaching the surface of the moon to land. It approaches the moons surface with an initial velocity of 28m/s and is slowing at a rate of -2m/s^2. Show all work and units for problems.
________ is a measure of the internal energy that has been absorbed or transferred from one body to another, often due to a difference in temperature.
5. What happens to the arrangement of water molecules as ice melts? A Molecules gain enough energy to escape as vapor. B Molecules release enough energy to escape as vapor. C Molecules gain enough energy
A projectline is shot from the edge of a cliff 100 m above the ground with intial speed 10 m/s at an angle 30 with the horizontal. 1) determine the time taken by the projectile motion to hit the ground
A 2.0-N force acts horizontally on a 10-N block that is initially at rest on a horizontal surface. The coefficient of static friction between the block and the surface is 0.50. Suppose that the block now
Link Copied!