In Fig. 8-52, a 3.5 kg block is accelerated from rest by a compressed spring of spring constant 640 N/m. The block leaves the spring at the springs relaxed length and then travels over a horizontal floor with a coefficient of kinetic friction mk ! 0.25. The frictional force stops the block in distance D ! 7.8 m. What are (a) the increase in the thermal energy of the blockfloor system, (b) the maximum kinetic energy of the block, and (c) the original compression distance of the spring? No friction D ( k ) Figure 8-52 53.
In Fig. 8-52, a 3.5 kg block is accelerated from rest by a
Problem 53 Chapter 8
Fundamentals of Physics | 10th Edition
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