Question

The rate of change of momentum is proportional to the applied force and the change of momentum occurs in the direction of the force called Give Answer​

Answer 1

Answer:

Newton's second law of motion says that the rate of change of linear momentum of a body is equal to the net external force applied to it. If the net external force acting on a body is zero, then the rate of change of momentum is also zero, which means that there is no change in momentum.

Explanation:

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Answer 2

Answer:

this is Newton second law of motion

Explanation:

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Let initial momentum ($p_i$) be mu

Let final momentum ($p_f$) be mv

According to 2nd law of motion

$\frac{p_f - p_i}{t} \propto \: f$

$\implies \: f \propto \frac{mv \: - mu}{t}$

$\implies \: f \propto \frac{m(v - u)}{t}$

$f \propto \: ma \: \: \: \: \: \: ( \frac{v - u}{t } = a )$

To remove the proportionality sign. We would add k as the proportionality constant

$f = kma \\ f = ma \:$

because by the definition of force k = 1