Ques 11 5. A car moving with velocity of 50 kmh on a straight road is ahead of ajeep moving with velocity 75 kmh. How would the relative velocity bealtered if jeep is ahead of car ?6. Which of the two-linear velocity or the linear acceleration gives thedirection of motion of a body ?7. Will the displacement of a particle change on changing the position oforigin of the coordinate system ?8. If the instantaneous velocity of a particle is zero, will its instantaneousacceleration be necessarily zero ?9. A projectile is fired with Kinetic energy 1 KJ. If the range is maximum,what is its Kinetic energy, at the highest point ?10. Write an example of zero vector.11. State the essential condition for the addition of vectors.12. When is the magnitude of (A+ B) equal to the magnitude of (A-B) ?13. What is the maximum number of component into which a vector can beresolved ?14. A body projected horizontally moves with the same horizontal velocityalthough it moves under gravity. Why ?15. What is the angle between velocity and acceleration at the highest point ofa projectile motion ?16. When does (i) height attained by a projectile maximum ? (ii) horizontalrange is maximum ?17. What is the angle between velocity vector and acceleration vector inuniform circular motion ?Kinematic55

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10. Write an example of zero vector. 11. State the essential condition for the addition of vectors. 12. When is the magnitude of (A+ B) equal to the magnitude of (A-B) ? 13. What is the maximum number of component into which a vector can be resolved ? 14. A body projected horizontally moves with the same horizontal velocity