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Two bodies of mass 4 and 6 kg are attached to the ends of a string passing over a pulley. The 4 kg mass is attached to the table top by another string. Find the tension in the string T1. (g=9.8 m/s^{2}).

-T +6g = 6a --------equation 2

Solving these two equations, we get

2g = 10a

2(9.8)=10a

a = 1.96m/s^2

T1=ma

m = 4+6=10kg

T1=10(1.96) = 19.6N