Verified Solution • 2025–26 Session moderate

QJEEM24Phd28e: JEE Main 2024 Physics - Class 11 JEEM24Phd28e Solution: A block of mass 100   kg slides over a distance of 10…

A block of mass 100 kg slides over a distance of 10 m on a horizontal surface. If the co-efficient of friction between the surfaces is 0.4, then the work done against friction (inJ) is :

Multiple Choice Options

  • A 3900
  • B 4500
  • C 4200
  • D 4000

Step-by-Step Verified Solution

 Given m=100 kg s=10 mμ=0.4 As f=μmg=0.4×100×10=400 N Now W=f.s=400×10=4000 J

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