SATHEE: Work Energy And Power Question 235

Work Energy And Power Question 235

Question: If stretch in a spring of force constant k is tripled then the ratio of elastic potential energy in the two cases will be

Options:

A) 9:1

B) 1:6

C) 3:1

D) 1:3

Show Answer

Answer:

Correct Answer: A

Solution:

[a] For a given spring, $u = \frac{1}{2} k x^{2}$
$∴ \frac{u_{2}}{u_{1}} = \frac{\frac{1}{2} k x_{2}^{2}}{\frac{1}{2} k x_{1}^{2}} = \frac{{(3 x)}^{2}}{x^{2}} = 9 : 1$

Work Energy And Power Question 235

Question: If stretch in a spring of force constant k is tripled then the ratio of elastic potential energy in the two cases will be

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

Work Energy And Power Question 235

Question: If stretch in a spring of force constant k is tripled then the ratio of elastic potential energy in the two cases will be

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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