Projectile Problem: Find y, vy0, vy Impact, & Velocity Mag/Dir

  • Thread starter akshajkadaveru
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In summary, the conversation discussed launching a projectile with an initial velocity of 2.8 m/s at an angle of 30 degrees. After 0.4 seconds, the projectile hit a target at a horizontal distance of 0.4m. The y-coordinate of the target was found to be 0.399. The initial velocity was calculated using the equation vy^2+2ay(y-y0). The y-component of the projectile's velocity just before impact and its magnitude and direction were not discussed in the conversation.
  • #1
you launch a projectile with an initial velocity of at an angle of 30 degrees and it hits a target .4 secpmds after it is launched at a horizontal distance of .4m
a. what is the y coordinate of the target
b. what was its intial velocity
c.what is the y- components of it s velocity just before it impacts the target
d. and what is its velocity magnitude and direction just before it impacts the target.

what i did:
1. drew graph
2. vy^2+2ay(y-y0) to find initial velocity
vy0= 2.8 m/s
3. find time
with vy=vy0+at
0-2.8/-9.8=.285 seconds
4. y coordinate:
y=voy+1/2at^2
.399idk how to find the others... please help me.
 
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  • #2
I suggest parking this one until we've dealt with the other similar problem you just posted. Then you can use this one to see if you've learned how to do them.
 

What is a projectile problem?

A projectile problem involves finding the position, velocity, and acceleration of an object that is launched into the air and follows a curved path due to the force of gravity.

What is y in a projectile problem?

In a projectile problem, y represents the vertical displacement or height of the object at a given time.

How do you find vy0 in a projectile problem?

vy0, or the initial vertical velocity, can be found by using the equation vy0 = v0sinθ, where v0 is the initial velocity of the object and θ is the launch angle.

What is vy Impact in a projectile problem?

vy Impact, or the vertical velocity at impact, is the final vertical velocity of the object when it reaches the ground or a target. It can be calculated using the equation vy Impact = vy0 + gt, where g is the acceleration due to gravity and t is the time of flight.

How do you find the magnitude and direction of velocity in a projectile problem?

The magnitude and direction of velocity can be found using the equation v = √(vx^2 + vy^2) and θ = tan^-1(vy/vx), where vx and vy are the horizontal and vertical components of velocity, respectively.

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