Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Motion in A Straight Line question

2014 · Shift 0 · Q73
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Motion in A Straight Line
  5. /2014 · Shift 0 · Q73

Motion in A Straight Line question

2014 · Shift 0 · Q73

JEE MainPhysicsMotion in A Straight LineMCQ+4 / −1
From a tower of height H, a particle is thrown vertically upwards with a speed u. The time taken by the particle, to hit the ground, is n times that taken by it to reach the highest point of its path. The relation between H, u and n is:
  1. A
    2gH = n2u2
  2. B
    gH = (n - 2)2u2
  3. C
    2gH = nu2(n - 2)
  4. D
    gH = (n - 2)u2
PreviousNext

More from Motion in A Straight Line

  • An object, moving with a speed of 6.25 m/s, is decelerated at a rate given by : dtdv​=−2.5v​ where v is the instantaneous speed. The time taken by the object, to come to rest, would be :2011 · MCQ
  • Consider a rubber ball freely falling from a height h=4.9m onto a horizontal elastic plate. Assume that the duration of collision is negligible and the collision with the plate is totally elastic. Then the velocity as a function of time…2009 · MCQ
  • A body is at rest at x=0. At t=0, it starts moving in the positive x-direction with a constant acceleration. At the same instant another body passes through x=0 moving in the positive x direction with a constant speed. The…2008 · MCQ
  • The velocity of a particle is v = v0 + gt + ft2. If its position is x = 0 at t = 0, then its displacement after unit time (t = 1) is2007 · MCQ
  • A particle located at x = 0 at time t = 0, starts moving along the positive x-direction with a velocity 'v' that varies as v=αx​. The displacement of the particle varies with time as2006 · MCQ
  • A car starting from rest accelerates at the rate f through a distance S, then continues at constant speed for time t and then decelerates at the rate 2f​ to come to rest. If the total distance traversed is 15 S, then2005 · MCQ
  • The relation between time t and distance x is t = ax2 + bx where a and b are constants. The acceleration is2005 · MCQ
  • A parachutist after bailing out falls 50m without friction. When parachute opens, it decelerates at 2m/s2. He reaches the ground with a speed of 3m/s. At what height, did he bail out?2005 · MCQ