Use a sentence to describe how the spacing of the dots for the accelerated motion is different from the spacing of the dots you would expect for uniform motion.
In accelerated motion the dots are spaced further apart as the time increases.
Would my answer be correct? If not please correct me. Thanks.
If a car driving in a forward motion has an initial velocity of +20m/s and a final velocity of +6m/s. What is it's acceleration? (positive, negative or zero)
Please help me with this question. thanks.
Yes, your answer for the first question is correct. In accelerated motion, the dots are indeed spaced further apart as the time increases, indicating an increase in velocity.
For the second question, to find the acceleration of the car, you can use the formula:
acceleration (a) = (final velocity - initial velocity) / time
Given:
Initial velocity (u) = +20 m/s
Final velocity (v) = +6 m/s
Since the final velocity is less than the initial velocity, the car is decelerating or slowing down. Therefore, the acceleration would be negative. Plugging in the values into the formula, we have:
acceleration (a) = (+6 m/s - +20 m/s) / time
You would need to know the value of time to determine the exact acceleration of the car.