Two powerless rockets are on a collision course. The rockets are moving with spe

Question

Two powerless rockets are on a collision course. The rockets are moving with speed v = 0.800c (rocket 1) and v = -.600c (rocket 2) and are initially 2.52 * 10^12m apart as measured by Liz, an Earth observer. Both rockets are 50m long as measured by Liz.

a) What are their respective proper lengths?

b) What is the length of each rocket as measured by an observer in the other rocket?

c) According to Liz, how long before the rockets collide?

d) According to rocket 1, how long before they collide?

e) According to rocket 2, how long before they collide?

f) If both rocket crews are capable of total evacuation within 90 minutes will there be any casualties?

Explanation / Answer

Please follow the link below.It contains the same problem with very well explained solution.Only difference is in the numerical values,but the concept is same.Please give me a good rating as i found this link after working hard.Here is the link http://www.cramster.com/answers-feb-11/physics/modern-physics-length-coll-ltpgtquestion-powerless-rockets-collision_1137760.aspx

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