Share
Explore BrainMass

Find the average acceleration

The positions of two blocks at successive 0.20 second time intervals are represented by numbered squares in the diagram below. The blocks are moving toward the right.

20. Do the blocks ever have the same speed? Explain the reasoning behind your answer.

A. No
B. Yes at instant 2
C. Yes at instant 5
D. Yes at instant 2 and 5
E. Yes at some time during the interval 3 to 4

21. The accelerations of the blocks are related as follows:

a.) the acceleration of "a" is greater than the acceleration of "b"
b.) the acceleration of "b" is greater than the acceleration of "a'
c.) The acceleration of "a" equals the acceleration of "b." Both are greater than zero.
d.) The acceleration of "a" equals the acceleration of "b". Both are zero.
e.) Not enough information is given to answer the question.

Attachments

Solution Preview

Answer is given in the form of a word document.

Answer for the questions are as follows.

When it is observed about the block 1, it is clear that, it has increasing the distance it cover in the regular intervals of time , where as the block 2 is traveling equal distances in equal interval of time.

Let us discuss about the second block first.

The given scale is appearing to be in centimeters.

So the separation between any two successive positions of ...

Solution Summary

In an attached Word document, explanations are given regarding the speed of the blocks and acceleration of the blocks, including clear calculations.

$2.19