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/s2 in east direction. When person 'A' stops pulling, it moves with acceleration 1m/s2 in the west direction. When person 'B' stops pulling, it moves with acceleration 24m/s2 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 directions, is :
(A) 26m/s2
(B) 3√71m/s2
(C) 25m/s2
(D) 30m/s2
