Relativity Help: Finding Distances, Angles & Perimeters

[dead1327]

1.-Two particles moving in a straight line in a laboratory reference system at a speed v = 3/4c, hit a stationary target with a time interval t = 50 [ns]. Finding the proper distance between the particles before hitting the target.

2.-Certain particle moving with velocity v in a sitema O; its direction forms an angle μ with the axis X. To determine the corresponding angle in the system X´ which moves with velocity V over the system or in the positive direction of X axis if the X and X´ match.

3.-There is a triangle where the length of each one of its sides is equal to Lo. Calculate the perimeter of this triangle in a reference system moving with constant with V respect to the over:
a) one side;
b) one of its bisectors.

 

[lewando]

Welcome to PF. If you check out the rules you will find that you need to do some work. First, identify the relevant equations and second, show your attempt at a solution. From there, we would have something to discuss.

 

[dead1327]

I need your help because I do not understand how to start these exercises left me doubt if they can do would be helpful