Do Now-Solve and Indicate if the acceleration is positive or negative. Why?

A car is starting its race from the home and increases his speed to 40m/s over the course of the first 5 seconds. What is the race cars acceleration?

A cyclist is driving at a rate of 10m/s and slows his speed to 2 m/s when he sees a large hill. He does this in 2 seconds.. What is the acceleration?

Physics Talk

How do you calculate braking distance?

Vi2=-2ad

Physics Talk

How do you calculate braking distance?

Vi2=-2ad

vi2

-2a d

Checking up pg. 82, #1-3

IN GROUPS-Use Gutau to solve

A car is traveling at 20m/s, 10 meters ahead a deer runs on the road and the driver hits his brakes…What is the car’s acceleration? Use the braking distance formula to solve…..

WDYTN pg86