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Answer: Two identical 1.50-kg masses are pressed against
Chapter 8, Problem 23E(choose chapter or problem)
Problem 23E
Two identical 1.50-kg masses are pressed against opposite ends of a light spring of force constant 1.75 N/cm, compressing the spring by 20.0 cm from its normal length. Find the speed of each mass when it has moved free of the spring on a frictionless horizontal table.
Questions & Answers
QUESTION:
Problem 23E
Two identical 1.50-kg masses are pressed against opposite ends of a light spring of force constant 1.75 N/cm, compressing the spring by 20.0 cm from its normal length. Find the speed of each mass when it has moved free of the spring on a frictionless horizontal table.
ANSWER:Solution 23E
Step 1:
Provided, the masses of the bodies as, m = 1.50 kg
Force constant of the spring, k = 1.75 N/ cm
1 m = 10-2 m
Therefore, k = 1.75 N/ 10-2 m = 175 N/ m
The compression of the spring, x = 20 cm = 0.2 m
The potential energy of the spring during compression, PE = ½ kx2
PE = ½ × 175 N/m × 0.22 m2 = 3.5 J