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Class 11 Physics: Motion in a Plane
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MCQs on plane scalars and vectors, vectors resolution, vector addition analytical method, plane motion, graphical method, two dimensions relative velocity, plane motion with constant acceleration, simple projectile and uniform circular motions.

Class 11 Physics: Motion in a Plane
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25 Questions

1. Unit vector which is perpendicular to the vector 4î + 3ĵ is _____
2. A big stone of mass 1000 g, projected at an angle of 30° from the ground it covers a maximum vertical distance of 5 m, acceleration due to gravity is g = 10 m/s2, what is the velocity with which it was thrown?
3. The angular velocity of a stone being rotated is 11 rad/s. What is the angular displacement covered in 0.5s?
4. A ball is being rotated in a circle of radius 5 m with a constant tangential velocity of 20 m/s. A stone is also being rotated in a circle of radius 4 m with a constant tangential velocity of 16 m/s. Which one of the following choices is true about both the circular motions?
5. Which of the following is not an example of motion in a plane?
6. A vector can be resolved along ______
7. What is the resolved form for a vector which is 5 units in long and is inclined at an angle of 45 degrees to the X axis?
8. What is the standard form for the resolution of a vector having magnitude 'a' and is inclined at an angle θ to the X axis?
9. A bag of mass 1000 g, projected at an angle of 90° from the ground with an initial velocity of 5 m/s, acceleration due to gravity is g = 10 m/s2, what is the maximum height attained?
10. Eleven times unit vector along X added to 7 times unit vector along Y gives ______
11. On adding two vectors we get _____
12. A car moves 25 units in the positive X direction and 75 units in negative Y direction starting from the origin in 25 seconds. What is the velocity vector of the car?
13. The vector 40î + 30ĵ is added to a vector. The result gives 15î + 3ĵ as the answer. The unknown vector is _____
14. A body is moving with a constant acceleration of 4î + 3ĵ, starting from the origin. What will be the position of the body after 5s?
15. The mathematical expression for centripetal force is ______
16. A body is moving with a constant acceleration of 11î + 7ĵ, starting from the origin. What will be the position of the body after 10s?
17. Adding î + 77ĵ and 7î + ĵ gives ______
18. A body of mass 55 kg, projected at an angle of 45° from the ground with an initial velocity of 15 m/s, acceleration due to gravity is g = 10 m/s2, what is the maximum horizontal range covered?
19. Calculating the relative velocity is an example of ______
20. At which position in vertical circular motion is the tension in the string minimum?
21. The velocity of a car A is to 5î. The velocity of another car B is 22î – 7ĵ. What is the relative velocity of A with respect to B?
22. The force that keeps the body moving in circular motion is _______
23. The vector obtained by addition of two vectors is termed as ______
24. A body of weight 20 N, mass 2 kg is moving in vertical circular motion with the help of a string of radius 1 m and with a velocity of 2 m/s. What is the tension in the string at the lowest point?
25. A body of weight 20 N, mass 2 kg is moving in vertical circular motion with the help of a string of radius 1 m and with a velocity of 5 m/s. What is the tension in the string at the highest point?

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