Two Blocks and a Cord

Two Blocks and a Cord

1. A block of mass 5.00 kg rides on top of a second block of mass 10.0 kg. A person attaches a string to the bottom block and pulls the system horizontally across a frictionless surface, as in Figure 4.24. Friction between the two blocks keeps the 5.00-kg block from slipping off. If the coefficient of static friction is 0.350, what maximum force can be exerted by the string on the 10.0-kg block without causing the 5.00-kg block to slip?

Two Blocks and a Cord

2. Suppose instead that the string is attached to the top block in Example 14.4. Find the maximum force that can be exerted by the string on the block without causing the top block to slip.

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