A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Awheeled car with a springloaded cannon fires a metal ball vertically. If the vertical initial speed of the ball is 2.0 m/s as the cannon moves horizontally at a speed of 0.55 m/s , how far from the launch point does the ball fall back into the cannon?
anonymous
 one year ago
Awheeled car with a springloaded cannon fires a metal ball vertically. If the vertical initial speed of the ball is 2.0 m/s as the cannon moves horizontally at a speed of 0.55 m/s , how far from the launch point does the ball fall back into the cannon?

This Question is Open

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Hey Rachel, This is a fairly easy one so i'm going to try and make you fully understand it. lets first under stand the problem. We know the 'projectile's' initial velocity which is 2m/s, we can call this the 'projectiles (y) component' because it is in the (y) or upwards direction. we also know the forward velocity ((x) component) that is 0.55 m/s. now lets visualize this while also listing our unknowns; dw:1443406998862:dw The hard part of the question is solving for the amount of time taken. The time taken is completely dependent on its initial y velocity (2m/s). (the reason why the velocity in the 'x' direction doesn't matter is the same reason why if you through w ball up in a moving buss it comes right back to your hand as if you were not moving). Now visualize a ball being thrown straight up, it will keep on slowing down (decelerating) because gravity is acting on it (10m/s^2). lets draw a graph. dw:1443408132615:dw here, the gradient is the velocity / time (change in velocity) so gradient=rise/run =4/t if we change the subject of the formula we get t=rise/gradient=4/10= 0.4seconds. all we need to do now is multiply the time it took for the ball to came back into the forward velocity. distance=speed x time = 0.55 x 0.4 = 0.22m ( the answer)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Did this help you? Because if not please ask me anything you did not understand

IrishBoy123
 one year ago
Best ResponseYou've already chosen the best response.0what a great few posts!! than you @zakisista IMHO, you should always draw these before solving. and the vt graph was the icing on the cake.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.