JEE Main 2020 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 4 September 2020, Shift 1, Physics Q3

Question 3 of 75 in this shift, Physics question 3 of 25.

Starting from the origin at time t=0, with initial velocity

5\hat{j}

^{-1}

, a particle moves in the

x-y

plane with a constant acceleration of

\left(10\hat{i}+4\hat{j}\right)

^{-2}

. At time t, its coordinates are (20 m,

y_0

m). The values of t and

y_0

are, respectively :

(1)2 s and 24 m
(2)4 s and 52 m
(3)2 s and 18 mOfficial answer
(4)5 s and 25 m

Official answer

Option 3

NTA final key (Sep 2020).

Chapter: Motion in a Plane
Topic: Kinematics in 2D
Idea tested: Vector Component Resolution

Same idea in other shifts

Asked 6× in all

8 Apr 2024, Shift 1 · Q51Three vectors $\overrightarrow{OP}$ , $\overrightarrow{OQ}$ and $\overrightarrow{OR}$ each of magnitude $A$ are acting as shown in figure.…EasyNumerical valueHas a figure
30 Jan 2024, Shift 2 · Q51A vector has magnitude same as that of $\vec{A} = 3\hat{i} + 4\hat{j}$ and is parallel to $\vec{B} = 4\hat{i} + 3\hat{j}$ . The $x$ and $y$ …EasyNumerical value
15 Apr 2023, Shift 1 · Q37A vector in $x-y$ plane makes an angle of 30° with y-axis. The magnitude of y-component of vector is $2\sqrt{3}$ . The magnitude of…EasySingle correct
26 Aug 2021, Shift 1 · Q18The magnitude of vectors $\overrightarrow{OA}$ , $\overrightarrow{OB}$ and $\overrightarrow{OC}$ in the given figure are equal. The…MediumDiagram basedHas a figure
27 Aug 2021, Shift 1 · Q4The resultant of these forces $\overrightarrow{OP}$ , $\overrightarrow{OQ}$ , $\overrightarrow{OR}$ , $\overrightarrow{OS}$ and…MediumSingle correctHas a figure

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.