Concept explainers
(a)
The distance from block B’s initial position do the two blocks meet and the time elapsed from
(a)
Answer to Problem 173P
The distance from block B’s initial position is
Explanation of Solution
Write the expression for the acceleration of each block.
Here,
Write the expression for displacement after a time
Here,
Substitute equation I in equation II,
Write the expression for the velocity of the blocks.
Here,
Substitute equation I in equation IV,
At the end of the
Write the expression for the displacement of each block during
Here,
Substitute equation IV and equation I in equation VI.
Write the expression for the distance.
The displacements of the block B are subtracted because they are intrinsically negative.
Write the expression for the displacement of the block B.
Conclusion:
Rearrange equation VIII to find
Substitute
Write the equation for elapsed time from
Substitute
The distance from the block
Substitute
Therefore, The distance from block B’s initial position is
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Chapter 4 Solutions
PHYSICS
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