When you snap your wrist open, the frisbee ___

A car with a mass of 1,600 kg is traveling at a speed of 25 m/s. What is the momentum of

tamaranim1 [39]

40,000 kg m/s
Momentum = mass * velocity
= 1600 * 25
= 40,000

3 0

3 years ago

A projectile's horizontal range on level ground is r=v20sin2θ/g. at what launch angle or angles will the projectile land at half

Ksju [112]

As given the formula of range is

$R = \frac{v^2sin2\theta}{g}$

now for the maximum range

$\theta = 45$

$R_{max} = \frac{v^2}{g}$

now for half of this maximum range we will have

$\frac{R_{max}}{2} = \frac{v^2sin2\theta}{g}$

$\frac{v^2}{2g} = \frac{v^2sin2\theta}{g}$

now from above we have

$sin2\theta = \frac{1}{2}$

so two possible values for above is given as

$\theta = 15 degree, 75 degree$

so above two angle we will have half of maximum range

6 0

4 years ago

You throw a ball with a speed of 25.0 m/s at an angle of 40.0â—¦ above the horizontal directly toward a wall. The wall is 22.0 m

Alina [70]

The ball takes about 1.15 seconds to reach the wall

<h3>Further explanation</h3>

Acceleration is rate of change of velocity.

$\large {\boxed {a = \frac{v - u}{t} } }$

$\large {\boxed {d = \frac{v + u}{2}~t } }$

<em>a = acceleration ( m/s² )</em>

<em>v = final velocity ( m/s )</em>

<em>u = initial velocity ( m/s )</em>

<em>t = time taken ( s )</em>

<em>d = distance ( m )</em>

Let us now tackle the problem!

This problem is about Projectile Motion

<u>Given:</u>

initial speed = u = 25 m/s

angle of speed = θ = 40.0°

horizontal distance = x = 22.0 m

<u>Unknown:</u>

time taken by the ball = t = ?

<u>Solution:</u>

<em>We will use this following formula to find the time taken by the ball to reach the wall:</em>

$x = u_x t$

$x = u \cos \theta ~t$

$22 = 25 \cos 40^o ~t$

$t = 22 \div ( 25 \cos 40^o )$

$t \approx 1.15 \texttt { seconds}$

$\texttt{ }$

<h2>Conclusion :</h2>

The ball takes about 1.15 seconds to reach the wall

$\texttt{ }$

<h3>Learn more</h3>

Velocity of Runner : brainly.com/question/3813437
Kinetic Energy : brainly.com/question/692781
Acceleration : brainly.com/question/2283922
The Speed of Car : brainly.com/question/568302

<h3>Answer details</h3>

Grade: High School

Subject: Physics

Chapter: Kinematics

Keywords: Velocity , Driver , Car , Deceleration , Acceleration , Obstacle , Projectile , Motion , Horizontal , Vertical , Release , Point , Ball , Wall

7 0

3 years ago

Read 2 more answers

A football coach walks 10 meters eastward and then 18 meters westward and then 22 metered East ward and finally 34 meters westwa

34kurt

Well you never specified what you're asking... however, this might help you learn the concepts of displacements and magnitude.

: The official displacement formula is as follows: s = sf - si. s = displacement; si = initial position; sf = final position

magnitude is the quantitative value of seismic energy. It is a specific value having no relation with distance and direction of the epicentre.

the magnitude of a vector in any dimension. For a 2d vector the formula is [math]|z| = \sqrt{x^2+y^2}[/math], where x and y are the x and y components of the vector respectively.

7 0

3 years ago

Read 2 more answers

A frame of reference is a point of set or points that.....

denis23 [38]

Describes the displace, velo, and accel of an object

8 0

3 years ago

When you snap your wrist open, the frisbee ____