vf^2=vi^2+2ad
Sandra, you need to memorize all these basic kinematic equations. Make some flashcards.
You are driving your car, and the traffic light ahead turns red. You apply the brakes for 2.28 s, and the velocity of the car decreases to + 4.76 m/s. The car’s deceleration has a magnitude of 2.99 m/s2 during this time. What is the car’s displacement?
1 answer