A train car has block M₂ on the floor of the car and block M₁ stacked on top of M₂. You acceleration constraints are that M2 and M₁ remain stationary relative to each other and remain on the same part of the train's floor. µs1 = 0.5 refers to the surface between M₁ and M₂ while us2 = 0.25 refers to the surface between M₂ and the floor. a) 5) c) Draw an Interaction Diagram then Free Body Diagrams for each ob- ject in your system that satisfy the con- straints (size of vectors matter). What is the maximum accel- eration the train can have to fulfill the constraints? What is the Force of friction 10kg and M₂ = acting on M₁ if M₁ 30kg? = M₁ M₂ Usi=1/ Hs2=1/

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### Problem 3:

**Scenario Description:**

A train car has block \( M_2 \) on the floor of the car and block \( M_1 \) stacked on top of \( M_2 \). The acceleration constraints specify that \( M_2 \) and \( M_1 \) must remain stationary relative to each other and on the same part of the train’s floor. The coefficient of friction \( \mu_{S1} = 0.5 \) refers to the interface between \( M_1 \) and \( M_2 \), while \( \mu_{S2} = 0.25 \) pertains to the interface between \( M_2 \) and the floor.

**Tasks:**

a) **Draw an Interaction Diagram and Free Body Diagrams:**  
   Create an interaction diagram followed by free body diagrams for each object in the system that comply with the constraints. The sizes of the vectors are significant.

b) **Maximum Acceleration Calculation:**  
   Determine the maximum acceleration the train can achieve while maintaining the constraints.

c) **Force of Friction Calculation:**  
   Compute the force of friction acting on \( M_1 \) where \( M_1 = 10 \, \text{kg} \) and \( M_2 = 30 \, \text{kg} \).

**Illustration Description:**

The image depicts a train car with a stick figure standing beside it. Inside the car:

- Block \( M_1 \) is stacked on block \( M_2 \).
- \( \mu_{S1} = 1/2 \) indicates the frictional surface between \( M_1 \) and \( M_2 \).
- \( \mu_{S2} = 1/4 \) indicates the frictional surface between \( M_2 \) and the floor of the train car.
Transcribed Image Text:### Problem 3: **Scenario Description:** A train car has block \( M_2 \) on the floor of the car and block \( M_1 \) stacked on top of \( M_2 \). The acceleration constraints specify that \( M_2 \) and \( M_1 \) must remain stationary relative to each other and on the same part of the train’s floor. The coefficient of friction \( \mu_{S1} = 0.5 \) refers to the interface between \( M_1 \) and \( M_2 \), while \( \mu_{S2} = 0.25 \) pertains to the interface between \( M_2 \) and the floor. **Tasks:** a) **Draw an Interaction Diagram and Free Body Diagrams:** Create an interaction diagram followed by free body diagrams for each object in the system that comply with the constraints. The sizes of the vectors are significant. b) **Maximum Acceleration Calculation:** Determine the maximum acceleration the train can achieve while maintaining the constraints. c) **Force of Friction Calculation:** Compute the force of friction acting on \( M_1 \) where \( M_1 = 10 \, \text{kg} \) and \( M_2 = 30 \, \text{kg} \). **Illustration Description:** The image depicts a train car with a stick figure standing beside it. Inside the car: - Block \( M_1 \) is stacked on block \( M_2 \). - \( \mu_{S1} = 1/2 \) indicates the frictional surface between \( M_1 \) and \( M_2 \). - \( \mu_{S2} = 1/4 \) indicates the frictional surface between \( M_2 \) and the floor of the train car.
Expert Solution
Step 1

(a) The free body diagram is 

Advanced Physics homework question answer, step 1, image 1

Advanced Physics homework question answer, step 1, image 2

(b) For mass M1

Equate the forces along vertical direction 

N1=M1g

The frictional force is 

f1=μs1N1f1=μs1M1gf1=12M1gf1=M1g2

 

 

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