- #1
Aziza
- 190
- 1
"An electron moves to the right with a speed of 0.90c relative
to the laboratory frame. A proton moves to the right
with a speed of 0.70c relative to the electron. Find the
speed of the proton relative to the laboratory frame."
u' = (u-v)/(1-(uv/c2)) where u will be velocity of electron with respect to lab frame, v is velocity of proton with respect to lab frame and u' is their relative velocity. ie, u=0.9c, u'=0.7c
Solving for v yields 0.54c. But my solutions book says 0.98c? I am pretty sure they are wrong...it would be 0.98c if the proton were moving to the left with respect to electron...am i right?
to the laboratory frame. A proton moves to the right
with a speed of 0.70c relative to the electron. Find the
speed of the proton relative to the laboratory frame."
u' = (u-v)/(1-(uv/c2)) where u will be velocity of electron with respect to lab frame, v is velocity of proton with respect to lab frame and u' is their relative velocity. ie, u=0.9c, u'=0.7c
Solving for v yields 0.54c. But my solutions book says 0.98c? I am pretty sure they are wrong...it would be 0.98c if the proton were moving to the left with respect to electron...am i right?