Student Login

Home›Chapters›Work, Energy and Power PYQs›Spring & Elastic Energy›Question 5

MHT CET 2024 (9 May, Shift 1) · Spring & Elastic Energy

Spring & Elastic Energy question from MHT CET 2024 (9 May, Shift 1)

Q5MHT CET 2024 · 9 MAY · SHIFT 1Easy

Spring & Elastic Energy

The potential energy of a long spring when it is stretched by 3 cm is ' $U$ '. If the spring is stretched by 9 cm, potential energy stored in it will be

Show answer and solution

Answer: (d)

Spring energy $U = \frac{1}{2}kx^2$ , so $U \propto x^2$ .
$\frac{U'}{U} = \left(\frac{9}{3}\right)^2 = 9$
So the answer is (d) $9U$ .

Report a mistake

More questions on Spring & Elastic Energy

A block is simply released from the top of an inclined plane as shown in the figure…JEE Main 2024 (8 Apr, Shift 2)
The potential energy of a long spring when stretched by 2 cm is U. If the spring is…NEET 2023
A block is fastened to a horizontal spring. The block is pulled to a distance x = 10 cm…JEE Main 2023 (1 Feb, Shift 2)
A ball of mass ' m ' is dropped from a height ' s ' on a horizontal platform fixed at the…MHT CET 2023 (10 May, Shift 2)
The restoring force of a spring with a block attached to the free end of the spring is…NEET 2022 (Phase 2)
As per the given figure, two blocks each of mass 250 g are connected to a spring of…JEE Main 2022 (26 Jul, Shift 1)
A block of mass ' m ' (as shown in figure) moving with kinetic energy E compresses a…JEE Main 2022 (28 Jul, Shift 1)
A 0.5 kg block moving at a speed of 12 ms ⁻¹ compresses a spring through a distance 30 cm…JEE Main 2022 (25 Jun, Shift 1)