A bicycle racer rides around a circular track of radius R. The racer speeds around its first lap at linear speed 1
v;. Later, their speed decreases to Vi.
3
How does the magnitude of the racer's centripetal acceleration change after the linear speed decreases?

Which quantities are scalars? choose all that apply a. distance b. speed c. acceleration d. velocity

Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .