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jti3066
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Homework Statement
A 5.0 kg block on a table is attached to a 4.0 kg block by a light string which passes over a light frictionless pulley. The coefficient of kinetic friction between block 1 and the table is U_k= 0.30. At time t = 0, block 1 is moving toward the pulley with a speed of 0.1 m/s.
A) What is the frictional force acting on Block 1?
B)What is the acceleration of Block 1?
Homework Equations
F_net = ma
F_f = u_k(m_1)(g)
The Attempt at a Solution
A) F_f = 0.30 * 5 * 9.81 = 14.72 N
B) T_1 = T_2
T_1 - u(m_1)g = m_1(a)
T_2 - u(m_1)g = m_1(a)
m_2(g) - u(m_1)g = m_1(a)
a = (((m_2)g)/m_1) - ug = 4.905 m/s^2