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Three blocks of masses 1.0, 2.0, and 4.0 kilograms are connected by mass less strings, one of which passes over a frictionless pulley of negligible mass, as shown above. Calculate each of the following.

a. The acceleration of the 4 kilogram block

b. The tension in the string supporting the 4 kilogram block

c. The tension in the string connected to the l kilogram block

(Sorry but I cant seem to get the pic on here- basically on one side of the pulley is a 4kg mass, and on the other side is a 2kg mass that is connected by a string to a 1kg mass)

I don't really know where or how to start. I know I'll need to use Newton's Second Law. But I'm have difficult applying it to these problems.

Thank you

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# Calculate acceleration of the 4 kilogram block

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