Figure 5-48 shows four penguins that are being playfully pulled along very slippery (frictionless) ice by a curator. The masses of three penguins and the tension in two of the cords are m1 = 12 kg, m3 = 16 kg, m4 = 23 kg, T2 = 112 N, and T4 = 212 N. Find the penguin mass m2 that is not given.(adsbygoogle = window.adsbygoogle || []).push({});

Image :- http://edugen.wiley.com/edugen/courses/crs1650/art/qb/qu/c05/fig05_46.gif

I really cannot find the formula for tension at all and also i don't understand the tension concept at all. So please can somebody help me please.

Thanks

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# Cannot find the formula for tension

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