Question

a force of 5N gives a mass m1 an accleration of 10m/s² and a mass m2 an acceleration of 20m/s². What acceleration would it give if both the masses were tied together?

Answer 1

You can calculate both mass with F=ma

m = F/a

m1= 0.5 kg

m2 = 0.25kg

m1+m2 will be the combined mass (tied together) =0.75 kg

a = F/m

a= 5/0.75 = 20/3 m/s^2

Hope this helped

Answer 2

$\huge\bigstar\sf\underline\red{GIVEN:-}$

$\large\sf{m1=\frac{F}{a1}}$

$\large\sf{m2=\frac{F}{a2}}$

$\large\sf\purple{Here,}$

$\large\sf{a1=10m/s}$

$\large\sf{a2=20m/s}$

$\large\sf{F=5N}$

$\large\sf\green{Thus,}$

$\large\sf{m1=\frac{5N}{10m/s}=0.50kg}$

$\large\sf{m2=\frac{5N}{20m/s}=0 25kg}$

$\small\sf\blue{If\:the\:two\:masses\:were\:tied\:together,the\:total}$

$\small\sf\blue{mass,m\:would\:be}$

$\large\sf{m=0.50kg+0.25kg=0.75kg}$