The Blocks Shown in the Figures Have Equal Masses and Are

Multiple Choice

The blocks shown in the figures have equal masses and are made of the same material.The velocity is the same in each figure.The total frictional force exerted by the surface on the blocks is

A) greater in Figure C than in Figure A or Figure B.
B) the same in Figure C as in Figure A.
C) the same in Figures A,B,and C.
D) the same in Figure A and Figure B.
E) the same in Figure C and Figure B.