Formula to determine time of flight - Projectile motion

Q.  Which of the following formulae is used determine the time of flight for projectile motion, when point of projection and point of landing are on same level of horizontal plane?
- Published on 18 Sep 15

a. (2u sin α) / g
b. (u2 sin α) / 2g
c. (2u sin α) / g cos θ
d. 2ug sin α

ANSWER: (2u sin α) / g

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    Discussion

  • Anjo   -Posted on 31 Aug 20
    Time of flight is the time that elapses from the instant of projection till the particle reaches the horizontal plane through the point of projection.
  • Sravanthi   -Posted on 15 Dec 15
    The formula used to determine time of flight for projectile motion, when point of projection and point of landing are on same level of horizontal plane is :

    Time of flight = (2u sin α) / g

    here,

    u is the initial velocity, α is the angle of projection.

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