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JIPMER 2013
Exam
JIPMER
Year
2013
Subject
Physics
Chapter
Motion in Two Dimensions

JIPMER 2013 · Physics · Motion in Two Dimensions

A body is thrown with a velocity of 9.8 ~m / s making an angle of...

A body is thrown with a velocity of 9.8 m/s9.8 \mathrm{~m} / \mathrm{s} making an angle of 30∘30^{\circ} with the horizontal. It will hit the ground after a time

Options

  1. A1.5 s
  2. B1 s
  3. C3 s
  4. D2 s

Correct answer

B. 1 s

Step-by-step solution

 The time of flight =2usin⁡θg=2×9.8×sin⁡30∘9.8=1s\begin{aligned} & \text{ The time of flight }=\frac{2 u \sin \theta}{g} \\ & =\frac{2 \times 9.8 \times \sin 30^{\circ}}{9.8}=1 \mathrm{ s}\end{aligned}
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