4-1.Newton's Laws of Motion
easy

$m$ દળ ધરાવતો એક કણ $v_1$ જેટલા અચળ વેગથી ગતિ કરે છે. કણને આઘાત આપતા તેનો વેગ $v_2$ થાય છે. આઘાતનું મુલ્ય કોને બરાબર હશે?

A

$m\left[v_{2}-v_{1}\right]$

B

$m\left[v_{1}+v_{2}\right]$

C

$\frac{1}{2} m\left[\left|v_{2}^{2}\right|-\left|v_{1}^{2}\right|\right]$

D

$m\left[\left|v_{2}\right|-\left|v_{1}\right|\right]$

(AIPMT-1990)

Solution

Impulse is a vector quantity and is equal to change in momentum of the body

Impulse $=m v_{2}-m v_{1}=m\left(v_{2}-v_{1}\right)$

Standard 11
Physics

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