Asked in Premeth Test 20 — Vectors and Equilibrium (physics)

Statements: Video libraries are flourishing very much these days.Conclusions:I. People, in general, have got a video craze.II. It is much cheaper to see as many movies as one likes on videos rather than going to the cinema hall.

Correct answer: D. Both I and II follow

  • A. Only conclusion I follows
  • B. Only conclusion II follows
  • C. Either I or II follows
  • D. Both I and II follow

Explanation

The flourishing of video libraries suggests a high demand, which can be described as a "video craze" (Conclusion I). A plausible reason for this high demand is the costeffectiveness compared to cinemas (Conclusion II). Both conclusions serve as likely causes for the stated fact.

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About Vectors and Equilibrium

Vectors have magnitude and direction, unlike scalars, and are combined by head-to-tail or parallelogram methods. Work covers rectangular components, equilibrium when the resultant force is zero, the scalar product for work and projections, and the vector product for torque and cross-product direction using the right-hand rule.

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