# physics

posted by .

Solve for v1.

O.500km/v1+3.50km/2v1=0.250h

• physics -

(2.25 km)/v1 = 0.25 h

v1 = 9 km/h

h would have to have dimensions of time for this to make any sense. I assume the "h" means hours in this case

• physics -

How did you get 2.25/v1?

• physics -

I did the algebra, combining the two terms on the left.

3.50km/(2v1) = 1.75km/v1

• physics -

Thanks I don't know I could forget that. Is this like algebra?

• physics -

Yes. You need to do some algebra to get the answer. You don't need any physics.

## Similar Questions

1. ### science

Please tell me if I'm right or wrong: 10minutes 10km (x)1 (y)1 60minutes 60km (x)2 (y)2 __________________________________________________ 60minutes-10km=50km ------ 60minutes-10km=50minutes ANSWER:50km ------- 50min
2. ### Pre Cal.

Together, two printers can print 7500 lines if the first printer prints for 2 minutes and the second prints for 1 minute. If the first printer prints for 1 minutes and the second prints for 2 minutes, they can print 9000 lines together. …
3. ### Physics

an airplane travels due north at 500km/hr there's a cross wind of 100km/hr determine the displacement of the air craft after 1 hour
4. ### SCIENCE(PHYSICS)

A train travels 40 km/hr for 0.2 hr, 50km/hr for next 0.2hr and 60km/hr for next 0.4 hr.calculate the average speed of train. PLEASE SOLVE THE QUESTION WITH ANSWER AS I WAS NOT ABLE TO GET THE ANSWER
5. ### physics

an experimental jetplane just after takeoff climbs with a speed of 500km/hr at an angle of 37 degrees with the horizontal. At what rate is the plane gaining altitude?
6. ### Physics

An airplane travels at 880 how long does it take to travel 1.50km
7. ### Crystal

So this is the problem: A comet is in an elliptical orbit around our Sun. At its point of closest approach, it is moving at 6.3x10^4 m/s and is 4.2x10^10m away from the sun. When it is at the farthest distance, 7.5x10^12m away, how …
8. ### Physics

So this is the problem: A comet is in an elliptical orbit around our Sun. At its point of closest approach, it is moving at 6.3x10^4 m/s and is 4.2x10^10m away from the sun. When it is at the farthest distance, 7.5x10^12m away, how …
9. ### Physics 11

An airplane flies at 500km/hr, there is a wind kf 50.0km/h(N).if the pilot wants to fly due east, calculate the direction that the plane is heading. Thanks.
10. ### physics

How much time will it take a car travelling at 88 km/hr (55 mi/hr) to travel 500km?

More Similar Questions