ACCELERATION & GRAPHING MOTION

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Presentation transcript:

ACCELERATION & GRAPHING MOTION

3 Ways to Accelerate Speed up Slow Down Change Directions

True or False It is not possible to accelerate if you are going constant speed

The change in velocity over time. Acceleration The change in velocity over time.

Solving Acceleration (You do not need to know this) Mr. Almero is cruising down the street in his Ferrari at a speed of 30kmh. He sees a dog run in the street so he slams on the brakes. In 2 seconds he comes to a complete stop and avoids hitting the dog. What was the rate of acceleration of Mr. Almero’s Ferrari when he slammed on the brakes?

Solving Acceleration (You do not need to know this) Mr. Almero’s Lamborghini can go from 0-60mph in 2.5 seconds. How quick can it accelerate?

Rates of Acceleration + Acceleration → Speeding Up - Acceleration → Slowing Down (Deceleration)

Units Units Units Direction Distance Time Speed Velocity Acceleration

CONSTANT SPEED An objects is going constant speed if it increases the same distance every second. position Speed Time Time

Which color is going constant speed? position Time Which color is going constant speed? Which color(s) is accelerating? Speed Time

Graph the following Distance vs. Time Distance Traveled (A) 5 s 5 m 10 s 10 m 15 s 15 m 20 s 20 m 25 s 25 m Distance Traveled (B) 10 m 20 m 30 m 40 m 50 m Distance Traveled (C) 5 m 15 m 20 m 25 m

Graph the following Speed vs. Time for A, B, C

Graphing Motion – Key Points Position/Distance vs. Time Graphs Straight lines = constant speed Slope = rise/run = distance/time = Speed Steeper slope → Higher Speed Speed vs. Time Graphs Flat lines (0 slope) = constant speed Positive slope = speeding up Negative slope = slowing down