Sunday

April 20, 2014

April 20, 2014

Posted by **CL** on Monday, June 7, 2010 at 11:11pm.

Find the speed of the rocket.

****

So far, I tried using the relativistic mass equation..

0.6m = mv / square root 1-(v/c)2

- physics - special relativity -
**Ariel G.**, Monday, June 7, 2010 at 11:22pmwhat did you get when you used that formula??

- physics - special relativity -
**CL**, Monday, June 7, 2010 at 11:24pmwhoops..

wrote it wrong.. should be..

0.6m = (mv) / (square root 1 - (v/c)^2)

and that's as far as i got.. i don't know what to do from there or if it's the right equation :S

- physics - special relativity -
**drwls**, Tuesday, June 8, 2010 at 8:32amThe relativistic mass is 1.6 times the rest mass. The rest mass cancels out.

1.6 = 1/sqrt[1 - (v/c)^2]

sqrt[1 - (v/c)^2] = 5/8

1 - (v/c)^2 = (5/8)^2 = 25/64

(v/c)^2 = 39/64

v/c = 0.781

**Related Questions**

Physics - According to special relativity, the momentum (mv) of an object at ...

physics - A firework rocket is launched vertically from rest and loses 60% of ...

Physics - Consider a rocket in space that ejects burned fuel at a speed of vex= ...

PHYSICS(elena) - Consider a rocket in space that ejects burned fuel at a speed ...

PHYSICS IMP PLS - Consider a rocket in space that ejects burned fuel at a speed ...

Physics -Conservation of Momentum- - 1) A 1 kg mass moving at 1 m/s has a ...

Physics -Conservation of Momentum- - 1) A 1 kg mass moving at 1 m/s has a ...

Really Physics - A 2.4 Kg object moving to the right at 0.8c collides with a 3.2...

Classical Mechanics Physics - Consider a rocket in space that ejects burned fuel...

physics Classical Mechanics - Consider a rocket in space that ejects burned fuel...