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Motion in a Plane — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysicsMotion in a Plane1 Mark
MCQ
Consider the quantities, pressure, power, energy, impulse, gravitational potential, electrical charge, temperature, area. Out of these, the only vector quantities are
  • A
    Impulse, pressure and area.
  • B
    Impulse and area.
  • C
    Area and gravitational potential.
  • D
    Impulse and pressure.
✓

Answer

  1. Impulse and area.

Explanation:

We know that impulse J = F. $\Delta\text{t}=\Delta\text{p},$ where F is force, At is time duration and Ap is change in momentum. As $\Delta\text{p}$ is a vector quantity, hence impulse is also a vector quantity. Sometimes area can also be treated as vector direction of area vector is perpendicular to its plane.

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