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rewona [7]
3 years ago
10

One formula that expresses Newton's second law of motion is:

Physics
1 answer:
statuscvo [17]3 years ago
6 0

Answer:

<u>The</u><u> </u><u>last</u><u> </u><u>option</u>

Explanation:

• Newton's second law states that the rate of change in momentum is directly proportional to the force applied and it takes the direction of the force.

\dashrightarrow \:  { \tt{ \frac{\delta \: momentum}{time}  = force }} \\  \\  \dashrightarrow \: { \tt{f =  \frac{mv - mu}{t} }} \\  \\  \dashrightarrow \: { \tt{f =  \frac{m(v - u)}{t} }} \\  \\  \dashrightarrow \: { \tt{f = m \{ \frac{(v - u)}{t}  \}}}

• from first equation of motion:

{ \bf{a =  \frac{v - u}{t} }} \\

substitute:

\dashrightarrow \: { \tt{f = ma}} \\  \\  \dashrightarrow \: { \boxed{ \tt{ \:  \: force = mass \times acceleration \:  \: }}}

• Assumption taken:

→ mass, m is assumed to be constant

→ the motion is assumed not to start from rest.

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