Problem 7.33 The 1.0 kg block in the figure is tied to the wall with a rope. It
ID: 1279574 • Letter: P
Question
Problem 7.33 The 1.0 kg block in the figure is tied to the wall with a rope. It sits on top of the 2.0 kg block. The lower block is pulled to the right with a tension force of 20 N. The coefficient of kinetic friction at both the lower and upper surfaces of the 2.0 kg block is Mu k = 0.450. Part A What is the tension in the rope holding the 1.0 kg block to the wall? Express your answer with appropriate units. Part B What is the acceleration of the 2.0 kg block! Express your answer with appropriate units.Explanation / Answer
for lowe body
20- 1*9.8*0.45 - 3*9.8*0.45 = 2*a
a = 1.18 m/s^2 for 2 kg body
for upper body equations
T - 1*9.8*0.45 = 0
T = 4.41 N