3-) A block of mass \( m_{1}=5 \mathrm{~kg} \) on a rough, horizontal surface is connected to a ball of mass \( m_{2}=3 \mathrm{~kg} \) and the force \( m_{1} \) \( F=80 \mathrm{~N} \mathrm{~kg} \) is applied with and angle \( \theta=30^{\circ} \) as shown in the figure above. There is friction between the mass \( \mathrm{m}_{1} \) and the surface with the coefficient of friction \( \mu=0.3 \). Draw free body diagram of each masses and determine the magnitude of the acceleration of the two objects and tension in the cord.
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A block of mass m1 = 35 kg on a horizontal surface is connected to a mass m2 = 17.4 kg that hangs vertically as shown in the figure below. The two blocks are connected by a string of negligible mass passing over a frictionless pulley. The coefficient of kinetic friction between m1 and the horizontal surface is 0.25. What is the magnitude of the acceleration (in m/s2) of the hanging mass? (b) Determine the magnitude of the tension (in N) in the cord above the hanging mass.
Timothy J.
A block of mass m1 = 35 kg on a horizontal surface is connected to a mass m2 = 17.4 kg that hangs vertically as shown in the figure below. The two blocks are connected by a string of negligible mass passing over a frictionless pulley. The coefficient of kinetic friction between m1 and the horizontal surface is 0.25. (a) What is the magnitude of the acceleration (in m/s2) of the hanging mass? (b) Determine the magnitude of the tension (in N) in the cord above the hanging mass. Consider Newton's Second Law for each mass.
Emily A.
(II) Figure 45 shows a block (mass $m_{A} )$ on a smooth hori- zontal surface, connected by a thin cord that passes over a pulley to a second block $\left(m_{B}\right)$ , which hangs vertically. (a) Draw a free-body diagram for each block, showing the force of gravity on each, the force (tension) exerted by the cord, and any normal force. (b) Apply Newton's second law to find formulas for the acceleration of the system and for the tension in the cord. Ignore friction and the masses of the pulley and cord.
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