THE SOLUTION SHOUID BE LIKE THIS you can calculate it by using impulse u must know that impulse , I = initial momentum-final momentum now just use conservation of energy from k*x2/2=2mV2/2 u will get V=under root of 2m*k into x now I=P2-P1 as P2 and P1 are in opposite direction so the equation will become I=P2+P1.............1 magnitude of P2=magnitude of P1=2*m*V now just put thease value in 1 and then put Favg*delta t=I=P2-P1
Moderation Team
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