Activity 4: Velocity and Acceleration of a Cart That is Speeding Up (Run 1) 1) Calculate the average acceleration of the

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Activity 4 Velocity And Acceleration Of A Cart That Is Speeding Up Run 1 1 Calculate The Average Acceleration Of The 1 (55.24 KiB) Viewed 27 times

Activity 4: Velocity and Acceleration of a Cart That is Speeding Up (Run 1) 1) Calculate the average acceleration of the cart from your Acceleration graph as follows. Click on Analyze, Examine. Move the arrow to 1.600s and read value of the acceleration. Continue until you have accelerations for all times shown below. Record the values below. Time (sec) 1.600 1.800 2.000 2.200 Run 1 Acc (m/s²) 1.12 1.35 1.25 1.31 *If the cart left the ramp before 2.400 s, then cross out 2.400 and write the time at which the cart left the ramp and the corresponding acceleration in the space below that time. Calculate the average of your five acceleration values. Avg acceleration a₁ m/s² Comment: Average acceleration during a particular time period is the change in velocity divided by the change in time. This is corresponds to the slope of the line on a velocity-time graph. In other words, the average slope of the velocity-time graph is the average acceleration of the object. 2) Calculate the average acceleration of the cart from your Velocity graph as follows. Read the velocity at times of 1.600s and 2.400s (see the * comment above) for Run 1. Point 1 Time: 1.600 s 1.85 m/s Velocity: Velocity: Point 2 Time: 2.400 s 3.05 m/s Calculate the change in velocity, the time interval, and the average acceleration: Change in velocity = Time Interval= m/s S 2.400 1.19
Avg Acceleration az = Q1. Is the acceleration positive or negative Is the velocity positive or negative? The general rule relating velocity and acceleration signs is that the signs are the same for increasing speed and opposite for decreasing speed. Do your velocity and acceleration signs agree with this rule? m/s² Q2. What is the percent difference between your average acceleration values in steps 1 and 2? Show your work here: Percent Difference % (Note that a negative percent difference just means that al is smaller than a2.)