Motion in a Plane

9 JEE Main questions · Physics

PhysicsJEE Main 22 Jan 2026, Shift 1·Q7·MCQ·Easy–moderate
Open
Motion in a plane – kinematics
A projectile is thrown upward at an angle $60^\circ$ with the horizontal. The speed of the projectile is 20 m/s when its direction of motion is $45^\circ$ with the horizontal. The initial speed of the projectile is m/s.
1. (1) $40\sqrt2$
2. (2)40
3. (3) $20\sqrt3$
4. (4) $20\sqrt2$
PhysicsJEE Main 23 Jan 2026, Shift 1·Q14·MCQ·Easy–moderate
Open
Motion in a plane – kinematics
An object is projected with kinetic energy K from a point A at an angle $60^\circ$ with the horizontal. The ratio of the difference in kinetic energies at points B and C to that at point A (see figure), in the absence of air friction is:
1. (1)1 : 2
2. (2)2 : 3
3. (3)1 : 4
4. (4)3 : 4
We corrected a printing error in the original paper
Source printed “the difference in kinetic energies points B and C” (“at” missing).
PhysicsJEE Main 24 Jan 2026, Shift 1·Q18·MCQ·Easy–moderate
Open
Motion in a plane – kinematics
A boy throws a ball into air at $45^\circ$ from the horizontal to land it on a roof of a building of height $H$ . If the ball attains maximum height in 2 s and lands on the building in 3 s after launch, then value of $H$ is m.
( $g = 10\ \mathrm{m/s^2}$ )
1. (1)20
2. (2)10
3. (3)25
4. (4)15
We corrected a printing error in the original paper
Source printed “A boy thrown a ball”.
PhysicsJEE Main 2 Apr 2026, Shift 1·Q3·MCQ·Moderate
Open
Motion in a plane – kinematics
The velocity of a particle is given as $\vec v = -x\hat i + 2y\hat j - z\hat k$ m/s. The magnitude of acceleration at point (1, 2, 4) is $\mathrm{m/s^2}$ .
1. (1) $\sqrt6$
2. (2)9
3. (3) $\sqrt{33}$
4. (4)0

PhysicsJEE Main 2 Apr 2026, Shift 1·Q4·MCQ·Moderate

Motion in a plane – kinematics

The position of an object having mass 0.1 kg as a function of time

t

is given as

\vec r = \left(10t^2\hat i + 5t^3\hat j\right)

m. At

t = 1

s, which of the following statements are correct?

A.	The linear momentum $\vec p = \left(2\hat i + 1.5\hat j\right)$ kg.m/s.
B.	The force acting on the object $\vec F = \left(2\hat i + 3\hat j\right)$ N.
C.	The angular momentum of the object about its origin $\vec L = 15\hat k$ J s.
D.	The torque acting on the object about its origin $\vec\tau = 20\hat k$ N m.

Choose the correct answer from the options given below.

(1)A, B and C only
(2)B, C and D only
(3)A, C and D only
(4)A, B and D only

We corrected a printing error in the original paper

Source printed “from the option given below”.

PhysicsJEE Main 4 Apr 2026, Shift 1·Q6·MCQ·Easy–moderate
Open
Motion in a plane – kinematics
The two projectiles are projected with the same initial velocities at the $15^\circ$ and $30^\circ$ with respect to the horizontal. The ratio of their ranges is $1 : x$ . The value of $x$ is
1. (1) $\sqrt2$
2. (2) $\sqrt3$
3. (3) $2\sqrt3$
4. (4) $\dfrac{1}{\sqrt2}$
PhysicsJEE Main 4 Apr 2026, Shift 2·Q4·MCQ·Easy–moderate
Open
Motion in a plane – kinematics
If $x$ and $y$ coordinates of a projectile as a function of time ( $t$ ) are given as $24t$ and $43.6t - 4.9t^2$ , respectively, then the angle (in degrees) made by the projectile with horizontal when $t = 2$ s is .
1. (1)60
2. (2)45
3. (3)30
4. (4)75
PhysicsJEE Main 4 Apr 2026, Shift 2·Q22·Numerical·Easy–moderate
Open
Motion in a plane – kinematics
A gun mounted on the ground fires bullets in all directions with same speed. The farthest distance the bullets could reach is 6.4 m. The speed of the bullets from the gun is m/s. (take $g = 10\ \mathrm{m/s^2}$ )
PhysicsJEE Main 8 Apr 2026, Shift 2·Q6·MCQ·Easy–moderate
Open
Motion in a plane – kinematics
Two identical bodies, projected with the same speed at two different angles cover the same horizontal range $R$ . If the times of flight of these bodies are 5 s and 10 s, respectively, then the value of $R$ is m. (Take $g = 10\ \mathrm{m/s^2}$ )
1. (1)250
2. (2)25
3. (3)500
4. (4)125
We corrected a printing error in the original paper
Source printed “If the time of flight of these bodies are”.