Verified Solution • 2025–26 Session moderate

QJEEM22Phe978: JEE Main 2022 Physics - Class 11 JEEM22Phe978 Solution: A body of mass 0.5   kg travels on straight line path with …

A body of mass 0.5 kg travels on straight line path with velocity v=(3x2+4)m/s. The net workdone by the force during its displacement from x=0 to x=2 m is :

Multiple Choice Options

  • A 64 J
  • B 60 J
  • C 120 J
  • D 128 J

Step-by-Step Verified Solution

v=3x2+4

at x=0, v1=4 m/s

x=2, v2=16 m/s

⇒ Work done = Δ kinetic energy

=12×m(v22−v12)

=14(256−16)

=60 J

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