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  1. The combined effect of two (or) more vectors is called …….. .
  2. The vector sum of two vectors is called ……… vector.
    18.The process of sub-dividing into two or more vectors is called ……… .
  3. A vector can be represented by an ………. .
  4. Vectors of ………. kinds may not be added.
  5. Only vector quantities of ………. kind may be added.
  6. If D ⃗ =-4C ⃗, the magnitude of D ⃗ is ………. than that of C ⃗.
  1. The rate of change of distance travelled is called _____ .
    (17) Uniform motion is motion with _____ velocity.
    (18) Any change in velocity gives rise to _____ .
    (19) Motion with changing velocity is called _____ motion.
    (20) The change in position along a certain direction is _____ .
    (21) The slope of the distance -time graph gives _____ .
    (22) The grater the slope of a straight line distance-time graph , the _____ is the speed.
    (23) The slope of the distance-time graph gives _____ .
    (24) The slope of the velocity-time graph gives _____ .
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