Dear Arti,

 The maximum deflection of a cantilever beam with
point load at its end is given by

L³*F/3EI

L is the length of the beam
F is the applied force
E is the youngs modulus(130GPa if its si-100)
I is the moment of inertia.

Any book on Beam theory or basic dynamics would give
you more insight.

regards,
Venkat

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