Question

what force must act on a body of mass 20 kg to give an acceleration of 3ms^2​

Answer 1

$\huge{ \mathtt{ \pink{answer}}}$

$\red {\mathtt{mass \: of \: the \: body \: m \: = 2kg}}$

$\red{\mathtt{acceleration \: of \: the \: body \: a = \frac{3m}{ {s}^{2}}}}$

$\red{ \mathtt{ = force \: \: f = ma = 2(3) = \frac{6kgm}{ {s}^{2} } = 6n}}$

$\red{ \mathtt {\: but \: force \: is \: rate \: of \: change \: of \: momentun}}$

$\red{ \mathtt{therefore \: change \: in \: momentum \: in \: one \: second \: is \: \frac{6kgm}{ {s}^{2} } }}$

Answer 2

Answer:

Hi mate

Step-by-step explanation:

Answer is in pic

Hope it helps...