Question

How to derive the equation for 2nd law of motion

Answer 1

Answer:

Explanation:mathematically

We know v=u+at

Avg velocity=u+v÷2

Distance traveled=avg velocity × time taken

S=u+v÷2×t

Now substitute v by u+at(first eqn of motion)

S=(u+u+at)÷2×t

S=(2u+at)×t÷2

S=ut+1÷2at^2

Answer 2

Force is directly proportional to rate of change of momentum.
F=MA
F=Km(v-u)/t
F=Kma
K is constant
K=1