Question

Please help me to solve this question 5.

Answer 1

Given
Force =5N
$\underline{acceleration = 2}m{s {}^{2} }$
$\small{m = f \div a} \\ {m} = {5 \div 2} \\ {m = 2.5kg}$
$\red{similar} \\ \red{f = ma } \\ 5n = 5ms { - }^{2} \times m \\ m = 1kg$