An object is launched at a velocity of 25 m/s in a direction making an angle of 20° upward with the horizontal. What is the maximum height reached by the object? What is the horizontal range (maximum x above ground) of the object?

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An object is launched at a velocity of 25 m/s in a direction making an angle of 20° upward with the horizontal.

What is the maximum height reached by the object?

  1. What is the horizontal range (maximum x above ground) of the object?
### PHY 150 PROBLEM SET 3

#### Projectile Motion Equations

1. **Horizontal Velocity:**
   \[ v_x = v_o \cos \theta = \text{constant} \]

2. **Vertical Velocity:**
   \[ v_y = v_o \sin \theta \]

3. **Vertical Velocity at some time \( t \):**
   \[ v_y = v_o (\sin \theta) - gt \]
   where \( g = 9.8 \frac{m}{s^2} \)

4. **Vertical Velocity at height \( y \):**
   \[ v_y^2 = (v_o \sin \theta)^2 - 2g \Delta y \]

5. **Horizontal Distance Traveled:**
   \[ \Delta x = v_o (\cos \theta) t \]

6. **Vertical Distance Traveled:**
   \[ \Delta y = (v_o \sin \theta)t - \frac{1}{2}gt^2 \]

7. **Time to Highest Point:**
   \[ t = \frac{v_o \sin \theta}{g} \]

8. **Total Flight Time:**
   \[ t = \frac{2v_o \sin \theta}{g} \]

These equations are fundamental in understanding the principles of projectile motion. They cover various aspects of projectile trajectory including horizontal and vertical components of velocity, displacement, and time calculations. 

* **Horizontal Velocity ( \( v_x \) ):** This remains constant throughout the projectile’s flight.
* **Vertical Velocity ( \( v_y \) ):** This changes due to the influence of gravity.
* **Vertical Velocity at some time \( t \):** This is the initial vertical velocity minus the product of gravitational acceleration ( \( g \) ) and time ( \( t \) ).
* **Vertical Velocity at height \( y \):** This relation uses the squared initial vertical velocity, gravitational acceleration, and the vertical distance \( \Delta y \).
* **Horizontal Distance Traveled ( \( \Delta x \) ):** The distance covered horizontally over time.
* **Vertical Distance Traveled ( \( \Delta y \) ):** The distance covered vertically over time, adjusted for gravitational effects.
* **Time to Highest Point:** The time it takes for the projectile to reach its maximum height.
* **Total Flight Time:** The total duration the projectile is in
Transcribed Image Text:### PHY 150 PROBLEM SET 3 #### Projectile Motion Equations 1. **Horizontal Velocity:** \[ v_x = v_o \cos \theta = \text{constant} \] 2. **Vertical Velocity:** \[ v_y = v_o \sin \theta \] 3. **Vertical Velocity at some time \( t \):** \[ v_y = v_o (\sin \theta) - gt \] where \( g = 9.8 \frac{m}{s^2} \) 4. **Vertical Velocity at height \( y \):** \[ v_y^2 = (v_o \sin \theta)^2 - 2g \Delta y \] 5. **Horizontal Distance Traveled:** \[ \Delta x = v_o (\cos \theta) t \] 6. **Vertical Distance Traveled:** \[ \Delta y = (v_o \sin \theta)t - \frac{1}{2}gt^2 \] 7. **Time to Highest Point:** \[ t = \frac{v_o \sin \theta}{g} \] 8. **Total Flight Time:** \[ t = \frac{2v_o \sin \theta}{g} \] These equations are fundamental in understanding the principles of projectile motion. They cover various aspects of projectile trajectory including horizontal and vertical components of velocity, displacement, and time calculations. * **Horizontal Velocity ( \( v_x \) ):** This remains constant throughout the projectile’s flight. * **Vertical Velocity ( \( v_y \) ):** This changes due to the influence of gravity. * **Vertical Velocity at some time \( t \):** This is the initial vertical velocity minus the product of gravitational acceleration ( \( g \) ) and time ( \( t \) ). * **Vertical Velocity at height \( y \):** This relation uses the squared initial vertical velocity, gravitational acceleration, and the vertical distance \( \Delta y \). * **Horizontal Distance Traveled ( \( \Delta x \) ):** The distance covered horizontally over time. * **Vertical Distance Traveled ( \( \Delta y \) ):** The distance covered vertically over time, adjusted for gravitational effects. * **Time to Highest Point:** The time it takes for the projectile to reach its maximum height. * **Total Flight Time:** The total duration the projectile is in
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