physics

posted by .

A toy train is on a track which has a circumference of 10 meters. The train takes 20 seconds to complete one revolution around the
track.

• physics -

You posted this question twice.

They tell you how far it travels in 20 seconds. Divide the circumference by that time to get the speed.

The average velocity will depend upon the time interval of the measurement. For any multiple of 20 seconds, you end up on the same place. That should be a clue.

Similar Questions

1. physics

A toy train track is mounted on a large wheel that is free to turn with negligible friction about a vertical axis (see the figure). A toy train of mass m = 2.5 kg is placed on the track and, with the system initially at rest, the electrical …
2. physics

A toy train is on a track which has a circumference of 10 meters. The train takes 20 seconds to complete one revolution around the track.what is it's average speed?
3. Physics

Some how TRAIN A travelling at 36 m/s, is accidentally sidetracked onto the train track for TRAIN A. The TRAIN A engineer spots TRAIN A 100 m ahead on the same track and travelling in the same direction. The engineer jams on the brakes …
4. physics

A toy train rolls around a horizontal 1.0-{\rm m}-diameter track. The coefficient of rolling friction is 0.15. What is the magnitude of the train's angular acceleration after it is released?
5. Physics

A track is mounted on a large wheel that is free to turn with negligible friction about a vertical axis. A toy train of mass m = 0.140 is placed on the track and, with the system initially at rest, the train's electrical power is turned …
6. Physics

I'm not really sure on this one... Am i correct?
7. math

Sean has 8-inch pieces of toy train track and Ruth has 18-inches of train track. How many of each piece would each child need to build tracks that are equal in length?
8. Physics

A 1.11 kg toy train rolls around a circular horizontal track. If the train has an angular acceleration of -2.2 rads/s2 and is released with an angular speed of 17.0 rpm, what time is required for the train to come to a complete stop?
9. Physics

A 1.96 kg toy train rolls around a circular horizontal track. If the train has an angular acceleration of -1.95 rads/s2 and is released with an angular speed of 33.0 rpm, what time is required for the train to come to a complete stop?
10. maths

A train moving on a circular track with a diameter of 14,642 km,takes 50 minute to complete one revolution. calculate the peripheral velocity of the train in km/h

More Similar Questions