Kinematics · JEE Main previous year questions

2006 3 questions

1. Q412006 · 29 Apr 2006 · Shift 1

   A particle located at $x=0$ at time $t=0$, starts moving along the positive x-direction with a velocity 'v' that varies as $v=\alpha \sqrt{x}$. The displacement of the particle varies with time as

   1. A.$t^2$
   2. B.$t$
   3. C.$t^{1/2}$
   4. D.$t^3$
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   Answer: A

2. Q432006 · 29 Apr 2006 · Shift 1

   A ball of mass $0.2kg$ is thrown vertically upwards by applying a force by hand. If the hand moves $0.2m$ while applying the force and the ball goes upto $2m$ height further, find the magnitude of the force. (consider $g=10m/{\mathrm{s}}^2$).

   1. A.$4N$
   2. B.$16N$
   3. C.$20N$
   4. D.$22N$
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   Answer: D

3. Q462006 · 29 Apr 2006 · Shift 1

   A particle of mass $100g$ is thrown vertically upwards with a speed of $5m/s$. The work done by the force of gravity during the time the particle goes up is

   1. A.$-0.5J$
   2. B.$-1.25J$
   3. C.$1.25J$
   4. D.$0.5J$
   Show answer

   Answer: B