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Analyzing Acceleration in Different Scenarios: Cars and Cyclists

This document explores various acceleration scenarios involving a race car and a cyclist. It details how to calculate acceleration when a car accelerates to 40 m/s in 5 seconds and when a cyclist slows from 10 m/s to 2 m/s in 2 seconds. Additionally, it discusses calculating braking distance using the formula Vi² = -2ad when a car encounters an obstacle on the road. Through examples, it aims to clarify whether acceleration is positive or negative and the implications of these calculations in real-life situations.

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Analyzing Acceleration in Different Scenarios: Cars and Cyclists

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Presentation Transcript

  1. 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?

  2. Physics Talk • How do you calculate braking distance? • Vi2=-2ad

  3. Physics Talk • How do you calculate braking distance? • Vi2=-2ad vi2 -2a d

  4. Checking up pg. 82, #1-3

  5. 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…..

  6. WDYTN pg86

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