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## How are vectors used in projectile motion?

You can use vector-valued functions, their derivatives, and their integrals to model the motion of projectiles. When someone fires a projectile, its initial velocity can be represented by a vector where the magnitude is the overall speed and the angle is the direction of the projectile.

## What is meant by vector-valued function?

A vector valued function is a function where the domain is a subset of the real numbers and the range is a vector. To graph a vector valued function we can just graph the parametrically defined function.

**How do you find the vector value of a function?**

A vector-valued function is a function of the form ⇀r(t)=f(t)ˆi+g(t)ˆj or ⇀r(t)=f(t)ˆi+g(t)ˆj+h(t)ˆk, where the component functions f, g, and h are real-valued functions of the parameter t.

### What are the equations for projectile motion?

Few Examples of Two – Dimensional Projectiles

Quantity | Value |
---|---|

Equation of path of projectile motion | y = (tan θ0)x – gx2/2(v0cosθ0)2 |

Time of maximum height | tm = v0 sinθ0 /g |

Time of flight | 2tm = 2(v0 sinθ0/g) |

Maximum height of projectile | hm = (v0 sinθ0)2/2g |

In the above equations, Vix and Viy are the horizontal and vertical components of the initial velocity vector. The velocity vector, itself, always acts tangent to the path of motion. It shows the path of a projectile that is thrown at velocity Vi = (Vi , θ) from Point O.

**What is the path of a projectile motion?**

Projectile motion is a form of motion where an object moves in parabolic path; the path that the object follows is called its trajectory.

## How do you make a vector-valued function?

A vector-valued function is a function of the form ⇀r(t)=f(t)ˆi+g(t)ˆj or ⇀r(t)=f(t)ˆi+g(t)ˆj+h(t)ˆk, where the component functions f, g, and h are real-valued functions of the parameter t. The graph of a vector-valued function of the form ⇀r(t)=f(t)ˆi+g(t)ˆj is called a plane curve.

## How do you know if a function is vector-valued or scalar valued?

define a vector-valued function by taking its partial derivatives. Similarly if f(x, y, z) is a scalar-valued function of three variables. Then the gradient of f is the vector function defined as, ∇f = ( ∂f ∂x , ∂f ∂y , ∂f ∂z ) = ∂f ∂x i + ∂f ∂y j + ∂f ∂z k.

**How do you graph vector-valued functions?**

The graph of a vector-valued function of the form ⇀r(t)=f(t)ˆi+g(t)ˆj+h(t)ˆk is called a space curve. It is possible to represent an arbitrary plane curve by a vector-valued function. To calculate the limit of a vector-valued function, calculate the limits of the component functions separately.

### What are the 4 equations of motion?

Equations of Motion

Variable | Equation |
---|---|

Velocity | v, equals, u, plus, a, t,v=u+at |

Displacement with positive acceleration | s, equals, u, t, plus, one half, a, t, squared,s=ut+21at2 |

Displacement with negative acceleration | s, equals, v, t, minus, one half, a, t, squared,s=vt−21at2 |

### What are the 3 equations of motion?

Three Equations of Motion

- v = u + at.
- v² = u² + 2as.
- s = ut + ½at²