A 1.00 kg aluminum block and a 8.00 kg copper block are connected by a light str

Question

A 1.00 kg aluminum block and a 8.00 kg copper block are connected by a light string over a frictionless pulley. The two blocks are allowed to move on a fixed steel block wedge (of angle 0 30.0°) as shown in Figure P4.6:3 Copper Steed Figure P4.63 Making use of Table 4.2, determine the following (a) the acceleration of the two blocks m/s (b) the tension in the string Coefficients of Friction 0.57 0.61 047 0.53 0.36 1.0 0.8 0.25-0.5 0.2 0.94 0.4 Steel on steel Aluminum on steel Copper on steel ubber on concrete Wood on wood Glass on glass Waxed wood on wet snow 0.140.1 Waxed wood on dry snow Metal on metal (lubricated) 0.15 0.06 ce on ice Tefion on Teflon Symovial joints in hu 0.01 0.003 All values are approximate 0.74 0.04 0.03 0.04 004 Table 4.2

Explanation / Answer

Answer:

Accelration of two blocks a = (9.80665 * 8 * ( sin 30 - 0.47 * cos 30) ) / 8

= 0.911705 m/s^2

Tension in the string T = (1 * 0.911705) + (0.47 * 1 * 9.80665)

= 5.5208 N

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