Chapter 05, Problem 051 (Vector Drawing) The figure shows two blocks connected b

Question

Chapter 05, Problem 051 (Vector Drawing) The figure shows two blocks connected by a cord (of negligible mass) that passes over a frictionless pulley (also of negligible mass). The arrangement is known as Atwood's machine, one block has a mass m1 = 1.30 kg; the other has mass m2 = 2.30 kg. What are (a) the magnitude of the blocks, acceleration and (b) the tension in the cord? Step Step 2 The two forces acting on the block 1 must be identified Which forces act on the block 1? Gravitational force Normal force O Frictional force O Tension Attempts: 2 of 4 used SAVE FOR LATER

Explanation / Answer

accelaration is a = (m2-m1)*g/(m1+m2)

a = (2.8-1.3)*9.8/(2.8+1.3) = 3.59 m/s^2

Tension is T = 2*m1*m2*g/(m1+m2)

T = 2*2.8*1.3*9.8/(1.3+2.8)

T = 17.4 N

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