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2 Referring to the previous problem (with m_{1} = 5.4 kg, m_{2} = 3.2 kg, and F_{ext} = 104 N), what is the acceleration? Assume no friction is present.

3 Nine barefoot baseball players, with a total mass of 647 kg plays tug of war against five basketball players wearing shoes that provide a static coefficient of friction of 0.58 . The net mass of the (shoed) basketball team is 392 kg. What is the maximum coefficient of the barefoot boys if they lose?

4 Without their shoes, members of a 9 person baseball team have a coefficient of static friction of only 0.23 . But the team wins a game of tug of war due to their superior mass of 638 kg. They are playing against a 5 person basketball team with a net mass of 415 kg. What is the maximum coefficient of static friction of the basketball team?

5 In the figure shown, the mass of m_{1} is 6.6 kg, and the mass of m_{2} is 2.6 kg. If the external force, F_{ext} on m_{2} is 126 N, what is the tension in the connecting string? Assume that m_{1} has a kinetic coefficient of friction equal to 0.37, and that for m_{2} the coefficient is 0.44 .