# Math

posted by .

How do you find the distance? Please explain the steps ><

A ball in a pinball machine moves 13
of the way through a circular groove that has radius 3 m. How far does
the ball travel?

a. 3.14 m
b. 360 m
c. 6.28 m
d. 0.69 m

• Math -

"moves 13 of the way" ???

whole rotation = 2π(3) = 6π

take "whatever you mean" of that circumference.

I think you meant 1/3 of the way, sooo
circum = 6π = 18.85
1/3 of that is 6.28 , one of the choices

## Similar Questions

1. ### Physics

A pinball machine uses a spring that is compressed 4.0 cm to launch a ball. If the spring constant is 13 N/m, what is the force on the ball at the moment the spring is released?
2. ### College Physics

The ball launcher in a pinball machine has a spring that has a force constant of 1.50 N/cm. The surface on which the ball moves is inclined a = 14.5o with respect to the horizontal. If the spring is initially compressed 4.70 cm, find …
3. ### physics

a pitching machine throws a baseball at a batter with an initial velocity of 22.0 m/s at an angle of 30 degrees to the horizontal. the ball is 1.60 m above the ground when it is pitched. a) if the batter hots the ball at the same height …
4. ### Physics

5. The ball launcher in a pinball machine has a spring that has a force constant of 1.20 N/cm . The surface on which the ball moves is inclined 10.0° with respect to the horizontal. The spring is initially compressed 5.00 cm. Find …
5. ### Physics

A tennis ball connected to a string is spun around in a vertical, circular path at a uniform speed. The ball has a mass m = 0.162 kg and moves at v = 4.73 m/s. The circular path has a radius of R = 0.87 m 1)What is the magnitude of …
6. ### math

A tennis ball is dropped from a height of 7 ft. If the ball rebounds 2/3 of its height on each bounce, how far will the ball travel before coming to rest?
7. ### mechanics and heat

A tennis ball of mass m and radius R = 3 cm rolls up without slipping an inclined plane of inclination angle of 37 degree as shown in the figure at the bottom of the incline the center of mass velocity of the ball is v = 10 m/s . The …
8. ### Math

The equation d = 23 · t2 represents the distance in feet, d, the ball travels in t seconds. Part A How far does the ball travel in 5 seconds?
9. ### Math

A ball is placed on a long inclined ramp. It rolls down the ramp as shown in the diagram. The equation d = 23 · t2 represents the distance in feet, d, the ball travels in t seconds. Part A How far does the ball travel in 5 seconds?
10. ### Physics

A 35.1 g pinball starts at the top of a frictionless pinball table inclined at 46.0°. If the ball is released and the spring at the bottom is compressed 0.0600 m and has a spring constant of k = 27.7 N/m, how far back up the pinball …

More Similar Questions

Post a New Question