- #1
Aaron Curran
- 33
- 0
Here is the problem (Q3 (A));
Here's what I have so far;
Any help would be appreciated, thank you!
Here's what I have so far;
Any help would be appreciated, thank you!
RUber said:It appears you made an algebra error when you went from ## 21 \cos \alpha = \frac {30}{ t} ## to ## \cos \alpha = \frac {630}{ t} ##.
Also, I would first find your time of impact based on your horizontal component.
With that time of impact, you can make an expression that is in terms of alpha only.
RUber said:I made a substition of x = cos^2(alpha) and manipulated it into a quadratic equation to get the two solutions.
part b comes right out of part a if you have already solved for time of impact.
A projectile problem is a type of physics problem that involves calculating the motion of an object that is launched into the air, such as a ball or a bullet.
The main equations used to solve projectile problems are the equations of motion, which include the equations for displacement, velocity, and acceleration. These equations can be derived from Newton's laws of motion.
The first step in solving a projectile problem is to identify the known and unknown variables, such as the initial velocity, angle of launch, and time of flight. Then, you can use the equations of motion to calculate the unknown variables. It is important to draw a diagram and label the variables to help visualize the problem.
Some common mistakes when solving projectile problems include not properly converting between units, not taking into account air resistance, and not considering the effects of gravity. It is also important to double check your calculations and use significant figures to ensure accuracy.
Projectile problems have many real-life applications, such as calculating the trajectory of a baseball, determining the range of a projectile weapon, or predicting the motion of a rocket. They are also used in fields such as engineering, ballistics, and sports.