Grade 12Modern Physics

reference- HC VERMA Q-45 Work and Energy

Why can't we apply the concept....restoring force,

kx=mg so that x=mg/k?

P.S.- I know how to get the correct answer by applying conservation of energy.

Abdul Qadeer

15 Years agoGrade 12

3 Answers

Abdul Qadeer

15 Years ago

Consider the situation shown in figure.

Initially the spring is unstretched when the system is released from rest. Assuming no friction in the pulley, find the maximum elongation on the spring.

Why can't we apply the concept....restoring force,

kx=mg so that x=mg/k?

P.S.- I know how to get the correct answer by applying conservation of energy.

Abdul Qadeer

15 Years ago

Vishal

8 Years ago

Because in that case.. It will represent the equilibrium position of spring.. But actually when system is released.. It will first shoot the equilibrium point and then comes at equilibrium position.. So by applying that.. U will get the elongation at equilibrium position and not the maximum elongation

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reference- HC VERMA Q-45 Work and Energy Why can't we apply the concept....restoring force, kx=mg so that x=mg/k? P.S.- I know how to get the correct answer by applying conservation of energy.

Abdul Qadeer

3 Answers

Abdul Qadeer

Abdul Qadeer

Vishal

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reference- HC VERMA Q-45 Work and Energy

Why can't we apply the concept....restoring force,

kx=mg so that x=mg/k?

P.S.- I know how to get the correct answer by applying conservation of energy.

A nucleus X¹⁸⁴ at rest emitt alpha particle With kinetic energy 9.0MeV. The product Nucleus is Y. The values of Binding energy per nucleon of alpha particle & Y differ by 1.5MeV. The values of Binding energy per nucleon of X & Y differ by (n÷230) MeV, then n is

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