Question

If $120N$ of force is acting on a body with $6m{s}^{-2}$ acceleration, Its mass is _____________.

• A. $0.05Kg$
• B. $20Kg$
• C. $200Kg$
• D. $720Kg$

Answer 1

Answer: (B)

$20Kg$

According to newton second law

$F\left(force\right)=m\left(mass\right)\times a\left(acceleration\right)$

$F=120N$ $a=6m{s}^{-2}$

Mass of the body is,

$m=\frac{F}{a}$

$=\frac{120}{6}$

$=20kg$