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4.1 , newtons laws of motion — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysics4.1 , newtons laws of motion1 Mark
MCQ
Two masses $M$ and $m$ are connected by a weightless string. They are pulled by a force $F$ on a frictionless horizontal surface., the acceleration of mass $m$ is
  • A
    $\frac{F}{m}$
  • ✓
    $\frac{{F - T}}{m}$
  • C
    $\frac{{F + T}}{m}$
  • D
    $\frac{F}{M}$
✓

Answer

Correct option: B.
$\frac{{F - T}}{m}$
b
(b) Net force on mass $m$, $ma = F - T$$\therefore $ $a = \frac{{F - T}}{m}$

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