# physics

Runner A is initially 6.0 mi west of a flagpole and is running with a constant velocity of 4.0 mi/h due east. Runner B is initially 4.0 mi east of the flagpole and is running with a constant velocity of 5.0 mi/h due west. How far are the runners from the flagpole when they meet?

1. 👍
2. 👎
3. 👁
1. The first question is when do they meet?

distance apart 8mi
relative velocity is 9mi/hr

time= distance/velocity= 8/9 hr

how far did B go?
distance= 5mi/hr*8/9 hr= 40/9 mi
so they met (40/9-4) miles West of the flagpole.

1. 👍
2. 👎
👤
bobpursley
2. Runner A is initially 2.2 km west of a flagpole and is running with a constant velocity of 4.0 km/h due east. Runner B is initially 7.2 km east of the flagpole and is running with a constant velocity of 2.4 km/h due west. What will be the distance of the two runners from the flagpole when their paths cross?

1. 👍
2. 👎
3. R u sure it’s correct

1. 👍
2. 👎

## Similar Questions

1. ### Physics

Runner A is initially 6.0 km west of a flagpole and is running with a constant velocity of 9. km/h due east. Runner B is initially 5.0 km east of the flagpole and is running with a constant velocity of 8.0 km/h due west. How far

2. ### Precalc

Water is flowing from a major broken water main at the intersection of two streets. The resulting puddle of water is circular and the radius r of the puddle is given by the equation r = 5t feet, where t represents time in seconds

3. ### Physics

Running on a treadmill is slightly easier than running outside because there is no drag force to work against. Suppose a 60 kg runner completes a 5.0 km race in 19 minutes. Part A Determine the drag force on the runner during the

4. ### physics

A runner is at the starting gate and hears the starting gun. He begins running with a constant acceleration ai = 0.55 m/s2. He crosses the finish line at d = 100 m and then begins slowing down. It takes him tr to cross the finish

1. ### physics

Two planes are initially separated by a horizontal distance of 350 km. Plane A is positioned 350 km west of the Plane B. Plane A is initially traveling at a velocity of 60 m/s east. Plane B is traveling at a velocity of 45 m/s

2. ### math

A flagpole casts a 32-ft shadow. A boy who is 6 feet tall is standing near the flagpole casting a 16-ft shadow. They form similar triangles. How tall is the flagpole?

3. ### Physics

A runner is jogging at a steady 8.4 km/hr. When the runner is 2.6 km from the finish line, a bird begins flying from the runner to the finish line at 42 km/hr (5 times as fast as the runner). When the bird reaches the finish line,

4. ### physics

A runner circles a track of radius 50 m in 50 s moving at a constant rate. If the runner was initially moving north, what has been the runner's average acceleration when halfway around the track?

1. ### Physics

Wind is blowing toward south at 8m/s, a runner jogs west at 7 m/s. What is the velocity (speed and direction) of the air relative to the runner?

2. ### Math

From a point x = 110 feet in front of a public library, the angles of elevation to the base of the flagpole and the top of the flagpole are θ = 27.5° and 39° 45', respectively. The flagpole is mounted on the front of the

3. ### algebra

If you are standing 85 ft from the base of a flagpole, and determine that at ground level, you would need to look up at a 30° angle to see the top of the flagpole, how tall is the flagpole? Round the height to tenths.

4. ### Physics

A runner hopes to complete the 10000-m run in less than 30min. After running at constant speed for exactly 27min, there are still 1200m to go. The runner must then accelerate at 0.20m/s^2 for how many seconds in order to achieve