A \( 3.0 \mathrm{~kg} \) block is placed on a frictionless horizontal table. This block is connected to a \( 1.0 \mathrm{~kg} \) block with a light string as in the diagram below. A force of \( 160 \mathrm{~N} \) is then applied to the \( 3.0 \mathrm{~kg} \) block by pulling on another light string.
The blocks are placed in exactly the same way on another horizontal table with a coefficient of kinetic friction of 0.4 and the same force is applied. The acceleration of the system would now be
(a) about \( 60 \% \) less than for the frictionless table
(b) about \( 40 \% \) less than for the frictionless table
(c) about \( 10 \% \) less than for the frictionless table
(d) the same as if there was one \( 4 \mathrm{~kg} \) block instead of these two blocks
(e) both (c) and (d) will be true.