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Can someone explain how to get part b?? Two objects, with masses m 1 = 1.25 kg a

ID: 2134170 • Letter: C

Question

Can someone explain how to get part b??

Two objects, with masses m1 = 1.25 kg and m2 = 3.05 kg, attached by a massless rod parallel to the incline on which both slide, as shown in Fig. 5-53, travel down the plane withm1 trailing m2. The angle of incline is ? = 30

Can someone explain how to get part b?? Two objects, with masses m1 = 1.25 kg and m2 = 3.05 kg, attached by a massless rod parallel to the incline on which both slide, as shown in Fig. 5-53, travel down the plane withm1 trailing m2. The angle of incline is ? = 30degree. The coefficient of kinetic friction between m1 and the incline is mu 1 = 0.226; between m2 and the incline the corresponding coefficient is mu2 = 0.113. Figure 5-53 Compute the tension in the rod..86 0.85 N Compute the common acceleration of the two masses.

Explanation / Answer

b) (3.05 + 1.25)gsin30 - 0.226 x 1.25gcos30 - 0.113 x 3.05 x gcos30 = (3.05 + 1.25)a

a   =3.66 m/s3


a) T   + 1.25 x gsin30 - 0.226 x 1.25gcos30 =1.25 x 3.66

T = 1.27 N