AP EAMCET · PHYSICS · Laws of Motion
A body of mass \(0.15 \mathrm{~kg}\) moving with a velocity of \(15 \mathrm{~ms}^{-1}\) comes to rest, when it hits a spring that is fixed at another end. If the force constant of the spring is \(1500 \mathrm{Nm}^{-1}\), then the compression in the spring is
- A \(0.15 \mathrm{~m}\)
- B \(0.1 \mathrm{~m}\)
- C \(0.2 \mathrm{~m}\)
- D \(0.5 \mathrm{~m}\)
Answer & Solution
Correct Answer
(A) \(0.15 \mathrm{~m}\)
Step-by-step Solution
Detailed explanation
Given, mass of the body, \(m=0.15 \mathrm{~kg}\) Velocity of the body, \(v=15 \mathrm{~ms}^{-1}\) Spring constant, \(k=1500 \mathrm{Nm}^{-1}\) According to law of conservation of energy, the change in kinetic energy is equal to the change in potential energy, i.e.…
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