A cannonball is fired with an initial velocity v, of 91.8 m/s, at an angle of e, = 57° with the horizontal. At the top of the trajectory, the cannonball explodes into three fragments of masses m,, m,= m, and m,= 2m, The fragment with mass m, travels along the +x direction with a speed of 45 m/s. The fragment with mass m, falls vertically downward with a speed of 48 m/s. Find the magnitude of the velocity of the fragment m, Answer: 110 m/s The correct answer is: 120.01 m/s Find the direction (angle) of the velocity of the fragment m, as measured from the positive x-axis.

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**Problem Description:**

A cannonball is fired with an initial velocity \( v_i \) of 91.8 m/s, at an angle of \( \theta_0 = 57^\circ \) with the horizontal. At the top of the trajectory, the cannonball explodes into three fragments of masses \( m_1 \), \( m_2 = m_1 \), and \( m_3 = 2m_1 \). The fragment with mass \( m_3 \) travels along the +x direction with a speed of 45 m/s. The fragment with mass \( m_1 \) falls vertically downward with a speed of 48 m/s. Find the magnitude of the velocity of the fragment \( m_2 \).

**Student's Answer:**

Magnitude of the velocity of fragment \( m_2 \): 110 m/s (Incorrect)

**Correct Answer:**

Magnitude of the velocity of fragment \( m_2 \): 120.01 m/s

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**Second Part of the Problem:**

Find the direction (angle) of the velocity of the fragment \( m_2 \) as measured from the positive x-axis.

**Student's Answer:**

Direction (angle) of the velocity of fragment \( m_2 \): 133.15 degrees (Incorrect)
Transcribed Image Text:**Problem Description:** A cannonball is fired with an initial velocity \( v_i \) of 91.8 m/s, at an angle of \( \theta_0 = 57^\circ \) with the horizontal. At the top of the trajectory, the cannonball explodes into three fragments of masses \( m_1 \), \( m_2 = m_1 \), and \( m_3 = 2m_1 \). The fragment with mass \( m_3 \) travels along the +x direction with a speed of 45 m/s. The fragment with mass \( m_1 \) falls vertically downward with a speed of 48 m/s. Find the magnitude of the velocity of the fragment \( m_2 \). **Student's Answer:** Magnitude of the velocity of fragment \( m_2 \): 110 m/s (Incorrect) **Correct Answer:** Magnitude of the velocity of fragment \( m_2 \): 120.01 m/s --- **Second Part of the Problem:** Find the direction (angle) of the velocity of the fragment \( m_2 \) as measured from the positive x-axis. **Student's Answer:** Direction (angle) of the velocity of fragment \( m_2 \): 133.15 degrees (Incorrect)
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