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BITSAT 2010
Exam
BITSAT
Year
2010
Subject
Physics
Chapter
Motion in Two Dimensions

BITSAT 2010 · Physics · Motion in Two Dimensions

Two projectiles A and B are thrown with the same speed but angles...

Two projectiles A\mathrm{A} and B\mathrm{B} are thrown with the same speed but angles are 40∘40^{{}^{\circ}} and 50∘50^{{}^{\circ}} with the horizontal. Then

Options

  1. AA will fall earlier
  2. BB\mathrm{B} will fall earlier
  3. Cboth will fall at the same time
  4. DNone of these

Correct answer

A. A will fall earlier

Step-by-step solution

T=2usin⁡θg,\mathrm{T}=\frac{2 \mathrm{u} \sin \theta}{\mathrm{g}}, lesser is the value of θ\theta, lesser is sin⁡θ\sin \theta and hence lesser will be the time taken. Hence A will fall earlier.
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