Five persons A, B, C, D & E are pulling a cart of mass 100kg on a smooth surface and cart is moving with acceleration `3m//s^2` in east direction. When person 'A' stops pulling, it moves with acceleration `1m//s^2` in the west direction. When person 'B'stops pulling, it moves with acceleration `24m//s^2` in the north direction. The magnitude of acceleration of the cart when only A & B pull the cart keeping their directions same as the old direction is 

Options

A. `26 m//s^2`
B. `3sqrt(71) m//s^2`
C. `25 m//s^2`
D. `30 m//s^2`

Answer

C