Passage V
In 2 experiments, a student pulled each of 3 blocks in a straight line across a flat, horizontal surface.
In Experiment 1, the student measured the pulling force (the force required to move each block at a constant speed) and plotted the pulling force, in newtons (N), versus block mass, in kilograms (kg). The results are shown in Figure 1.
In Experiment 2, the student measured the speed versus time of a 2.00 kg block, a 2.50 kg block, and a 3.00 kg block as each block was pulled across the surface with a constant 30 N force. The results are shown in Figure 2.
27. At each of the times plotted in Figure 2 (except 0.00 sec), as block mass increased, block speed:
Your Answer is
Correct Answer is B
Explanation
According to figure 2, as the block mass increases, the ordinate speed of the line segment becomes smaller and smaller, so it is decrease only