Question

A force of 15 newton moves a body with an acceleration of 3 meter per second square it,s mass is​

Answer 1

$\star\small\sf\underline\blue{Given:-}$

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

• A force of 15 newton moves a body with an acceleration of 3 meter per second square.

______________________

$\star\small\sf\underline\blue{Find \: Out:-}$

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

• The required mass = ?

______________________

$\star\small\sf\underline\blue{Solution:-}$

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

$\footnotesize\bold{\underline{\underline{\sf{\red{Formula\: Used:-}}}}}$

${\underline{\boxed{\sf{Force = Mass \times Acceleration }}}}$

$\footnotesize\bold{\underline{\underline{\sf{\red{Putting\:the\: values:-}}}}}$

$\leadsto \: 15 \: = \sf \: Mass \times 3 \\ \\ \leadsto \sf \: Required\: Mass = \cancel\dfrac{15}{3} \\ \\ \leadsto \: \sf \: Required\: Mass = 5 \: kg$

______________________

$\star\small\sf\underline\blue{AnswEr:-}$

• The required mass is 5 kg.

Answer 2

$\huge⭐{\mathtt{\underline{\red{A}{\orange{N}}{\pink{S}}{\blue{W}}{\purple{E}}{\green{R\:}}}}}⭐$

Here,

Force = – 50 N (since it is a retarding force)

mass m = 20 kg

v = 0

u = 15 m s-1

Force F = ma

a = F/m = -50/20 = – 2.5 ms-2

Using the equation, v = u + at

0 = 15 + (- 2.5)

t = 6 s