Simplifying Acceleration Calculations

This video tutorial explains how to calculate acceleration, emphasizing the formula A = (VF - VI) / T, where VF is final velocity and VI is initial velocity. It covers three examples: a roller coaster speeding up, a car decelerating to a stop, and solving for final velocity. The tutorial highlights the importance of understanding the sign of acceleration and provides step-by-step calculations for each scenario.

What is the formula for calculating acceleration?

• A = VI - VF / T

• A = VF - VI / T

• A = VF + VI / T

• A = VF * VI / T

In the roller coaster example, what is the car's acceleration if it starts at 4 m/s and reaches 27 m/s in 5.2 seconds?

• 3.42 m/s²

• 6.42 m/s²

• 4.42 m/s²

• 5.42 m/s²

What does a negative acceleration indicate in the context of the car stopping for a red light?

• The car is moving at a constant speed.

• The car is changing direction.

• The car is speeding up.

• The car is slowing down.

If Jimmy accelerates at 1.8 m/s² for 6.3 seconds starting from 1.2 m/s, what is his final velocity?

• 11.34 m/s

• 13.54 m/s

• 14.54 m/s

• 12.34 m/s

What is the initial velocity of Jimmy in the final example?

• 1.4 m/s

• 1.2 m/s

• 1.0 m/s

• 0.8 m/s