Question

What was the average acceleration of the car from 40 seconds to 46 seconds? Include the correct units. Remember that Δ means final value minus initial value. What does the negative number of your answer tell you about the acceleration of the car?

Answer 1

When the acceleration of a car has a negative number (value), it simply means that the car is experiencing a deceleration.

Given the following data:

• Initial time = 40 seconds.

• Final time = 46 seconds.

What is an average acceleration?

An average acceleration can be defined as the rate of change of velocity of an object with respect to time and it is measured in meter per seconds square.

How to calculate average acceleration.

In Science, the average acceleration of an object is calculated by subtracting its initial velocity from the final velocity and dividing by the change in time for the given interval.

Mathematically, average acceleration is given by this formula:

$a=\frac{V\;-\;U}{t_f - t_i}$

Where:  

• V is the final velocity.

• U is the initial velocity.

• $t_i$ is the initial time measured in seconds.

• $t_f$ is the final time measured in seconds.

Note: The parameters given are incomplete and as such the average acceleration cannot be determined in this scenario.

Also, if the acceleration of this car has a negative number (value), it simply means that the car is experiencing a deceleration.

Read more on acceleration here: brainly.com/question/24728358