An object is launched from the ground with an initial speed vo at an angle of 53°. It lands on a platform which is 4m away and 2m above the ground. What is the initial launch speed vo of the object? V = VÃO
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
![**Problem Statement:**
An object is launched from the ground with an initial speed \( v_0 \) at an angle of 53°. It lands on a platform which is 4 meters away and 2 meters above the ground. What is the initial launch speed \( v_0 \) of the object?
**Equations:**
1. \( v = v_{x0} \)
2. \( x - x_0 = v_{x0} t \)
3. \( v_y = v_{y0} - gt \)
4. \( y - y_0 = v_{y0} t - \frac{1}{2} gt^2 \)
5. \( v_y^2 = v_{y0}^2 - 2g(y - y_0) \)
**Explanation:**
These equations describe the motion of the object in two dimensions. The horizontal and vertical components of the motion are considered separately and are influenced by initial speed, angle of launch, and gravitational acceleration \( g \).
1. Equation 1 states that the horizontal velocity (\( v \)) remains constant and equals the initial horizontal velocity (\( v_{x0} \)).
2. Equation 2 gives the horizontal displacement (\( x - x_0 \)) as a function of initial horizontal velocity and time (\( t \)).
3. Equation 3 describes how the vertical velocity (\( v_y \)) changes over time, accounting for gravitational acceleration.
4. Equation 4 represents the vertical displacement (\( y - y_0 \)), with contributions from initial vertical velocity and gravitational effects over time.
5. Equation 5 is derived from energy principles and relates the change in vertical velocity squared to the vertical displacement and gravitational force.
These equations can help determine unknown variables, such as the initial speed \( v_0 \), when provided with initial conditions and constraints, like the distance and height of the platform.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6dcee43b-a798-4f5f-aaa7-63ced3120c51%2F1c8c77f1-565a-4172-9995-2e64a1d1e951%2F9lveip_processed.jpeg&w=3840&q=75)
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