Question

Help me plzzz.............​

Answer 1

may this helps you..

Explanation:

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Answer 2

$\huge\red{{Solution}}$

Here,

Mass, m = 1 kg

initial velocity, u = 20 ms-¹

Distance, S = 50 m

Final velocity, v= 0

Acceleration, a=?

Force , f =?

we know that ,

$2as = {v}^{2} - {u}^{2}$

$= > 2a \times 50 = {0}^{2} - {20}^{2}$

$= > 2a \times 50 = 40$

$= > a = \frac{40}{100}$

$= > a = - 40$

Therefore, the force of friction is – 4 N