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Work Power and Energy question

2021 · 27 Jul · Shift 2 · Q59
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  5. /2021 · 27 Jul · Shift 2 · Q59

Work Power and Energy question

2021 · 27 Jul · Shift 2 · Q59

JEE MainPhysicsWork Power and EnergyMCQ+4 / −1
An automobile of mass 'm' accelerates starting from origin and initially at rest, while the engine supplies constant power P. The position is given as a function of time by :
  1. A
    (9P8m)12t32{\left( {{{9P} \over {8m}}} \right)^{{1 \over 2}}}{t^{{3 \over 2}}}(8m9P​)21​t23​
  2. B
    (8P9m)12t23{\left( {{{8P} \over {9m}}} \right)^{{1 \over 2}}}{t^{{2 \over 3}}}(9m8P​)21​t32​
  3. C
    (9m8P)12t32{\left( {{{9m} \over {8P}}} \right)^{{1 \over 2}}}{t^{{3 \over 2}}}(8P9m​)21​t23​
  4. D
    (8P9m)12t32{\left( {{{8P} \over {9m}}} \right)^{{1 \over 2}}}{t^{{3 \over 2}}}(9m8P​)21​t23​
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