Kinematics · JEE Main previous year questions

2018 3 questions

1. Q542018 · 16 Apr 2018 · Shift 1
   
   1. A.$\frac{25}{16}\frac{P_o{V}_o}{R}$
   2. B.$\frac{25}{8}\frac{P_o{V}_o}{R}$
   3. C.$\frac{25}{4}\frac{P_o{V}_o}{R}$
   4. D.$\frac{5}{8}\frac{P_o{V}_o}{R}$
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   Answer: B

2. Q462018 · 15 Apr 2018 · Shift 1
   
   1. A.$112.5m$ and $22.5s$
   2. B.$337.5m$ and $25s$
   3. C.$112.5m$ and $15s$
   4. D.$225.5m$ and $10s$
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   Answer: A

3. Q382018 · 8 Apr 2018 · Shift 1

   A particle is moving in a circular path of radius $a$ under the action of an attractive potential $U=-\frac{k}{2r^2}$. Its total energy is:

   1. A.$-\frac{3}{2}\frac{k}{a^2}$
   2. B.Zero
   3. C.$-\frac{k}{4a^2}$
   4. D.$\frac{k}{2a^2}$
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   Answer: B