JEE Main 2022 · 26 Jul · Shift 1 · Physics Q51

← JEE Main 2022 · 26 Jul · Shift 1

PhysicsInteger+4 / -1Question 51 of 90

If the initial velocity in horizontal direction of a projectile is unit vector $\hat i$ and the equation of trajectory is $y=5x(1-x)$ . The $y$ component vector of the initial velocity is ______ $\hat j$ .

(Take $g=10$ m/s $^2$ )

Your answer

Answer and worked solution

Official answer: 5

Trajectory $y=x\tan\theta-\frac{gx^2}{2u_x^2}$ with $u_x=1$ : $\tan\theta=5$ , so $u_y=5$ .

Answer: 5

Topics:Projectile motion

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JEE Main 2022 · 26 Jul · Shift 1, Physics question 51