Solution Found!
Answer: A 0.500-kg block, attached to a spring with length
Chapter 7, Problem 75P(choose chapter or problem)
A \(0.500-\mathrm{kg}\) block, attached to a spring with length \(0.60 \mathrm{~m}\) and force constant \(40.0 \mathrm{~N} / \mathrm{m}\), is at rest with the back of the block at point A on a frictionless, horizontal air table (Fig. P7.75). The mass of the spring is negligible. You move the block to the right along the surface by pulling with a constant \(20.0-\mathrm{N}\) horizontal force.
(a) What is the block’s speed when the back of the block reaches point B, which is \(0.25 \mathrm{~m}\) to the right of point A?
(b) When the back of the block reaches point B, you let go of the block. In the subsequent motion, how close does the block get to the wall where the left end of the spring is attached?
Equation Transcription:
Text Transcription:
0.500-kg
0.60 m
40.0 N/m
20.0-N
0.25 m
Questions & Answers
QUESTION:
A \(0.500-\mathrm{kg}\) block, attached to a spring with length \(0.60 \mathrm{~m}\) and force constant \(40.0 \mathrm{~N} / \mathrm{m}\), is at rest with the back of the block at point A on a frictionless, horizontal air table (Fig. P7.75). The mass of the spring is negligible. You move the block to the right along the surface by pulling with a constant \(20.0-\mathrm{N}\) horizontal force.
(a) What is the block’s speed when the back of the block reaches point B, which is \(0.25 \mathrm{~m}\) to the right of point A?
(b) When the back of the block reaches point B, you let go of the block. In the subsequent motion, how close does the block get to the wall where the left end of the spring is attached?
Equation Transcription:
Text Transcription:
0.500-kg
0.60 m
40.0 N/m
20.0-N
0.25 m
ANSWER:
Solution 75P
Step 1:
Work done to move the block, W = FS
Where, F - Force applied on the block
S - Displacement for the block.
Provided, horizontal force, F = 20 N
Displacement for the block, S = 0.25 m
W = 20 N × 0.25 m = 5 J