Physics, asked by ruhilpadhara, 9 months ago

plzz ans it fastttt.........

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Answered by vaishnavi2122

3

correct answer: 3

Explanation :

F = (m(v1 -v2)

T

=

140*10-3 (39+39)

12*

10-3

=1400*78

12

= 9100n

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