4-1.Newton's Laws of Motion
medium

એક પક્ષી પાંજરા અંદર બેઠેલ હોય,ત્યારે વજન $25 N$ છે.હવે,પક્ષી $2 m/s^2$ ના પ્રવેગથી પાંજરાની અંદર ઉડવાનું શરૂ કરે,ત્યારે નવું વજન ........ $N$ થાય.

A

$24 $

B

$25 $

C

$26 $

D

$27 $

Solution

(b)Since the cage is closed and we can treat bird, cage and the air as a closed (isolated) system. In this condition the force applied by the bird on cage is an internal force, due to this the reading of spring balance will not change.

Standard 11
Physics

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