Projectile Motion Help: Solving Cannon Ball Problems

In summary, the conversation discusses two homework problems involving a cannon launching a ball at a specific angle and initial velocity to hit a helicopter, as well as finding the angles for a cannon ball to travel a specific distance. The person discussing the problems has provided some initial calculations but is stuck and seeking assistance.
  • #1
nando94
33
0
I am really stuck on these two homework problems.

1. Basically, there is a cannon which will launch a ball at 60 degrees respect to the x axis. There is also a helicopter 90 feet away from the cannon and 70 feet up. What intial velocity will the cannon ball need to be launched with in order to hit the helicopter.

For this one I got vi = 43 m/s and t = 3.8 s but the x and y components don't add up

2. Find the two angles that will ensure that a cannon ball traveling at 35 m/s will land 29 meters away.

Dont know where to start on this.
 
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  • #2
Why don't you show us your work so we know what you did.
 

FAQ: Projectile Motion Help: Solving Cannon Ball Problems

What is projectile motion?

Projectile motion is the motion of an object through the air or space, under the influence of gravity. It is a combination of horizontal and vertical motion.

What are the key components of projectile motion?

The key components of projectile motion are the initial velocity, the angle of launch, and the acceleration due to gravity.

How is the trajectory of a projectile determined?

The trajectory of a projectile is determined by the initial velocity, angle of launch, and acceleration due to gravity. It can be calculated using mathematical equations such as the range equation or the maximum height equation.

What is the difference between a projectile's horizontal and vertical motion?

The horizontal motion of a projectile is constant and unaffected by gravity, while the vertical motion is affected by gravity and follows a parabolic path. This means that the horizontal velocity remains the same, while the vertical velocity changes due to the acceleration of gravity.

What factors can affect the trajectory of a projectile?

The trajectory of a projectile can be affected by factors such as air resistance, wind, and the shape and mass of the object. External forces such as these can cause the projectile to deviate from its expected path.

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