The crate C is being lifted by moving the roller at A downward with constant speed v_A along the guide. Determine the velocity and acceleration of the crate at the instant s = s₁. When the roller is at B, the crate rests on the ground. Neglect the size of the pulley in the calculation. Relate the coordinates x_C and x_A using the problem geometry, then take the first and second time derivatives. Given:

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VA = 2 m S $1 = 1 m d = 4 m e = 4 m