JEE Main 2026 · 4 Apr · Shift 2 · Physics Q28

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PhysicsSingle correct+4 / -1Question 28 of 75

At $t=0$ , a body of mass 100 g starts moving under the influence of a force $\left(5\hat i+10\hat j\right)$ N. After 2 s its position is $\left(2x\hat i+5y\hat j\right)$ m. The ratio $x:y$ is ________.

1 : 2

2 : 5

5 : 2

5 : 4

Answer and worked solution

Official answer: D

Acceleration. $\vec a=\frac{\vec F}m=(50,100)$ m/s².

From rest at the origin. $\vec r=\frac12\vec at^2=(100,200)$ m.

Solve. $2x=100$ and $5y=200$ , so $x=50$ , $y=40$ and $x:y=5:4$ .

(D)

Topics:Newton's laws Motion in a plane

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JEE Main 2026 · 4 Apr · Shift 2, Physics question 28