Homework Help: physics

Posted by Anonymous on Sunday, October 7, 2007 at 11:00pm.

From inside your apartment, you watch rain fall straight down at a constant speed of 9 m/s. Your friend L calls you as she is driving toawards the west at a constant of 90 km/hr. What with what velocity does L see the rain fall as she looks out her driver's side window?

I know I'm trying to find the velocity relative to L driving. I just dont know where to start. How would the velocity of the rain change?

physics - Quidditch, Sunday, October 7, 2007 at 11:19pm
Be sure to take care of units conversions.

From L's point of reference, the rain has the x component from her driving plus the y component of the rain falling. Find the resultant vector.
physics - drwls, Sunday, October 7, 2007 at 11:20pm
The velocity of the rain with respect to someone in the car is the vector sum of the downward rain velocity (9 m/s) and the car's speed, 90000m/3600 s = 25 m/s. Use the Pythagorean theorem for the resultant

Answer this Question

Related Questions

physics - A girl riding a bicycle with a speed of 5m/s towards northdirection , ...
Physics - You and your friend throw balloons filled with water from the roof of...
Physics - Rain is falling steadily but there is no wind. You are in an ...
physics - How to solve: If a man walk with speed of 2km/hour and rain fall ...
physics multiple choice - Far from any gravity, an astronaut accidentally ...
physics multiple choice - Far from any gravity, an astronaut accidentally ...
physics - You and your friend are leaning over the edge of the roof of a tall ...
physics - You and your friend are leaning over the edge of the roof of a tall ...
physics - You and your friend are leaning over the edge of the roof of a tall ...
Physics - You are conducting an experiment inside a train car that may move ...

For Further Reading

First Name:
School Subject:
Answer: