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This is a mechanics problem involving three blocks connected by a pulley system, and it asks to calculate various quantities such as acceleration, speed, distance traveled, and tension in the rope under certain conditions. Here is a breakdown of the question along with the given values:

- Block \( M_1 = 10 \, \text{kg} \) is hanging vertically.
- Block \( M_2 = P \, \text{kg} \) is on an inclined plane with no friction (since the coefficient \( \mu = 0 \)).
  - The value of \( P \) is given to be 10 kg.
- Block \( M_3 = 15 \, \text{kg} \) is also hanging vertically.
- Gravitational acceleration \( g = 10 \, \text{m/s}^2 \).
- The dimensions of the setup are given for the incline (5 m long, 3 m high), and the horizontal distance is 4 m.

### Part (a) asks:
- The acceleration, speed, distance traveled, and tension in the rope after the system is released and 2 seconds have passed.

### Part (b) asks:
- After 2 seconds, if the rope on the right side breaks, the distance traveled and tension change after the break for each of the masses.

### Approach to solving:

1. **System dynamics:**
   - We can start by analyzing forces acting on each block and setting up Newton's second law for each block in the system.
   - Block \( M_2 \) will have a force along the incline due to gravity, \( M_2g \sin(\theta) \), where \( \theta \) can be determined from the dimensions of the incline.

2. **Tension and acceleration:**
   - Using \( F = ma \) for each block and solving the system of equations can give the acceleration and tension in the string before and after the rope on the right side breaks.

Let me solve part (a) first.

#### Finding angle \( \theta \) of the incline:
Using the dimensions of the inclined plane:
\[
\tan(\theta) = \frac{3}{5} \quad \Rightarrow \theta = \arctan\left(\frac{3}{5}\right)
\]
\[
\theta \approx 30.96^\circ
\]

#### Forces on the blocks:

For block \( M_1 \):
\[
T - M_1g = M_1a
\]
For block \( M_2 \) on the incline (along the incline):
\[
M_2g \sin(\theta) - T = M_2a
\]
For block \( M_3 \):
\[
M_3g - T = M_3a
\]

By solving these equations simultaneously, we can find the acceleration \( a \) and the tension \( T \).

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I will calculate the acceleration and tension for part (a). Would you like to go over the forces more deeply before I continue with the solution, or should I proceed?

Given three blocks with masses M1=10 kg, M2=P kg (where P=10), and M3=15 kg, connected by a pulley system as shown in the diagram, determine acceleration, speed, distance, and rope tension after 2 seconds, and analyze further changes if the rope on the right side breaks after 2 seconds.

Solve a complex physics problem involving three blocks connected by a pulley on an inclined plane. Determine acceleration, speed, and tension after 2 seconds, with further analysis if the rope breaks. This exercise applies Newton's laws and is suitable for Grade 12 physics students.

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