Posted by **Nabiha** on Friday, September 11, 2009 at 4:52pm.

A bike racer is riding his new bike at Silverstone. The track is 4km long.

a) What is his average speed in m/s if he does a lap in 2 minutes?

b) What is his velocity after one lap?

- physics -
**bobpursley**, Friday, September 11, 2009 at 5:03pm
avg speed= distance/time change km to meters, min to seconds.

Velocity is (final position-initial position)/time. Because his final position and intial position are the same, his average velocity is zero.

## Answer this Question

## Related Questions

- Physics - A bike racer is riding his new bike at Silverstone. The track is 4km ...
- physics - a bike racer is riding on his new bike at silverstone. The track is ...
- physics - A motorcross racer covers one lap of a 1200 meter track on his ...
- sciencce - Mrs. Scheib was riding her bike and leaves home and rides due east ...
- physics - You are riding your bike and the tire has a radius of 0.33 m and mass ...
- physics - You are going for a bike ride. You ride down a straight road at a ...
- science - if you ride a bike an average speed of 4km/h and need to travel a ...
- Physics - A runner covers one lap of a circular track 40.0 m in diameter in 62....
- physics-distance - Here's a stationary bike. If you pedal such that the front ...
- physics - there are 3 parts to my question. i need help on the last part. 1.a. A...

More Related Questions