Linear motion Definition and 116 Threads

Hi, I need to make a 3d linear motion detection system for, oh... say a ball. I was thinking of setting up 3 small base stations that would ping something inside the ball and would be wired to a microcontroller that would use a triangulation algorithm to figure out the displacement of the ball...

Hi, I need to make a 3d linear motion detection system for, oh... say a ball. I was thinking of setting up 3 small base stations that would ping something inside the ball and would be wired to a microcontroller that would use a triangulation algorithm to figure out the displacement of the ball...

Earthquakes produce several types of shock waves. The most well-known are the P-waves (P for primary or pressure) and the S-waves (S for secondary or shear). In the Earth's crust, the P-waves travel at around 6.5 km/s while the S-waves move at about 3.5 km/s. The actual speeds vary depending on...

Hey! I have a question about the following problem: A train is traveling at 100 m/s. The engineer applies the breaks because he sees the Batmobile stuck on the tracks ahead. The breaks cause an acceleration of -2.2 m/s^2. The engineer applies the breaks when the train is 960 m from the...

Hello to all, Im new here, just found the site and wishing I had stumbled across this a few months back when I started my Electrical engineering course. I hope this is in the correct section, I did read through where to put this but apologies if I have placed this in the wrong section...

Linear Motion (I'm sure it is easy for all you out there) Okay, so I'm not really getting this problem: "A bowling ball traveling at constant speed hits the pins at the end of the lane, 20m away. If the bowler hears the "crack" of the ball hitting the pins 2.5 s after releasing the ball. If...

Hey again...im back with some more...these are simple questions that just boggle my mind..maybe I am just rushing myself. What is linear motion? My answer: Motion along a line Question: A small coin is halfway between the center and the outer edge of a turntable rotating at 45 rpm. What...

Here's the problem: A cat is chasing a mouse. The mouse runs in a straight line at a speed of 1.5 m/s. If the cat leaps off the floor at a 30 degree angle and a speed of 4.0 m/s, at what distance behind the mouse should the cat leap in order to land on the poor mouse? Now, I know I need to...

Here is the question: The speed of a moving bullet can be determined by allowing the bullet to pass through two rotating paper disks mounted a distance 0.921 m apart on the same axle. From the angular displacement 27.4 degrees of the two bullet holes in the disks and the rotational speed...

Hey Im having some trouble with this Accelerated Linear Motion question. I don't have any clue where i should even start with part (B). Im just lost, don't have a clue where to start. My head just starts to go into overload when i even think about it. Please help!

Hey Just need a little help with *another* accelerated linear motion question, any help is appreciated: (A) A particle starts from rest at a point p and accelerates at 2m/s^2 until it reaches a speed v m/s. It travels at this speed for one minute before delerating at 1m/s^2 to rest at q...

Hey Ok, so I am having troule with yet another accelerated linear motion question... any help is desperately needed and very much appreciated :) So here it goes: (A) A particle is projected vertically upwards with velocityum/s and is at a height h after t1 and t2 seconds respectively...

Ok, so I am having troule with yet another accelerated linear motion question... i got a 40% on my last exam, and i need at least a 90% on this one to keep a decent average... any help is desperately needed and very much appreciated :) So here it goes: (A) A particle is projected vertically...

If anybody could offer any help with this id be eternally gratefull Two cars A and B, each 5m in length, travel with constant velocity 20 m/s along a straight level road. The front of car A is 15m directly behind the rear of car B. Immediately on reaching a point P, each car decelerates at...

Hey Id really appreciate any help anybody can give me with this problem, its urgently needed and very very important, I've been stuck on it for about an hour and don't even know where to start: Two cars A and B, each 5m in length, travel with constant velocity 20 m/s along a straight level...

Hey, id greatly appreciate any urgent help you can give me with this problem Two cars A and B, each 5m in length, travel with constant velocity 20 m/s along a straight level road. The front of car A is 15m directly behind the rear of car B. Immediately on reaching a point P, each car...