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3/152 If the system is released from rest, determine the
speeds of both masses after B has moved 1 m. Ne-
glect friction and the masses of the pulleys.
40 kg
20°
8 kg
A
B

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ebAssign 110 N 40 ASK YOUR TEACHER 3. DETAILS SERCP11 4.7.P.065.MI. Objects with masses m, = 15.0 kg and m, = 8.0 kg are connected by a light string that passes over a frictionless pulley as in the figure below. If, when the system starts from rest, m, falls 1.00 m in 1.78 s, determine the coefficient of kinetic friction between m, and the table. 4. DETAILS SERCP11 5.2.OP.015. ASK YOUR TEACHER A 7.80 g bullet is initially moving at 620 m/s just before it penetrates a block of wood to a depth of 5.80 cm. (a) What is the magnitude of the average frictional force (in N) that is exerted on the bullet while it is moving through the block of wood? Use work and energy considerations to obtain your answer. (b) Assuming the frictional force is constant, how much time (in s) elapses between the moment the bullet enters the block of wood and the moment it stops moving?
A 2.00-kg object B is connected with a string to a 3.00-kgobject A, which is connected with a second string over a massless, frictionless pulley to a 8.00-kg object C. The strings have negligible mass and do not stretch, and the level tabletop is frictionless. Calculate the tension ?1. ?1= N Calculate the tension ?2. ?2= N Calculate the acceleration ? of the system. ?= m/s2
In the system shown in figure m., m, and m2 are the masses of the bodies. The pulleys and threads have negligible masses and there is no friction. Find the acceleration of the body m,. Analyze the possible cases. mo m, m2 4m1m2+mo(m1-m2) g 4m,m2+mo(m1+m2) ans
Determine the acceleration of the pulley system. (m1 = 7 kg, m2 = 9.5 kg) M₁ 7 kg m₂ = 9.5 kg
2) A bucket of water is suspended at the end of a rope wrapped around a pulley. The pulley is pivoted on a frictionless axle passing through its center. The axle is attached to the ceiling. The bucket is released from rest and falls a distance of H. The inertia of the pulley is I = ½ MR?. M a. On the diagram above, show all the forces applied on the bucket and 'R pulley. b. Determine the linear acceleration of the bucket. c. Determine the angular acceleration, a of the pulley. d. Determine the tension force in the rope. m e. Determine the speed of the bucket at the end of distance H. f. Determine the force exerted on the pulley by the axle.
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