1
JEE Main 2022 (Online) 29th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Two bodies of masses $$m_{1}=5 \mathrm{~kg}$$ and $$m_{2}=3 \mathrm{~kg}$$ are connected by a light string going over a smooth light pulley on a smooth inclined plane as shown in the figure. The system is at rest. The force exerted by the inclined plane on the body of mass $$\mathrm{m}_{1}$$ will be : [Take $$\left.\mathrm{g}=10 \mathrm{~ms}^{-2}\right]$$

JEE Main 2022 (Online) 29th July Evening Shift Physics - Laws of Motion Question 28 English

A
30 N
B
40 N
C
50 N
D
60 N
2
JEE Main 2022 (Online) 29th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

If momentum of a body is increased by 20%, then its kinetic energy increases by

A
36%
B
40%
C
44%
D
48%
3
JEE Main 2022 (Online) 29th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The torque of a force $$5 \hat{i}+3 \hat{j}-7 \hat{k}$$ about the origin is $$\tau$$. If the force acts on a particle whose position vector is $$2 i+2 j+k$$, then the value of $$\tau$$ will be

A
$$11 \hat{i}+19 \hat{j}-4 \hat{k}$$
B
$$-11 \hat{i}+9 \hat{j}-16 \hat{k}$$
C
$$-17 \hat{i}+19 \hat{j}-4 \hat{k}$$
D
$$17 \hat{i}+9 \hat{j}+16 \hat{k}$$
4
JEE Main 2022 (Online) 29th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

A thermodynamic system is taken from an original state D to an intermediate state E by the linear process shown in the figure. Its volume is then reduced to the original volume from E to F by an isobaric process. The total work done by the gas from D to E to F will be

JEE Main 2022 (Online) 29th July Evening Shift Physics - Heat and Thermodynamics Question 76 English

A
$$-$$450 J
B
450 J
C
900 J
D
1350 J
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