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JEE Main 2023 (Online) 24th January Morning Shift
Numerical
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A spherical body of mass 2 kg starting from rest acquires a kinetic energy of 10000 J at the end of $$\mathrm{5^{th}}$$ second. The force acted on the body is ________ N.

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2
JEE Main 2022 (Online) 28th July Morning Shift
Numerical
+4
-1
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A block of mass '$$\mathrm{m}$$' (as shown in figure) moving with kinetic energy E compresses a spring through a distance $$25 \mathrm{~cm}$$ when, its speed is halved. The value of spring constant of used spring will be $$\mathrm{nE} \,\,\mathrm{Nm}^{-1}$$ for $$\mathrm{n}=$$ _________.

JEE Main 2022 (Online) 28th July Morning Shift Physics - Work Power & Energy Question 45 English

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3
JEE Main 2022 (Online) 25th June Morning Shift
Numerical
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A uniform chain of 6 m length is placed on a table such that a part of its length is hanging over the edge of the table. The system is at rest. The co-efficient of static friction between the chain and the surface of the table is 0.5, the maximum length of the chain hanging from the table is ___________ m.

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4
JEE Main 2022 (Online) 25th June Morning Shift
Numerical
+4
-1
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A 0.5 kg block moving at a speed of 12 ms$$-$$1 compresses a spring through a distance 30 cm when its speed is halved. The spring constant of the spring will be _______________ Nm$$-$$1.

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