Homework Help: physics

Posted by Katie on Wednesday, January 30, 2013 at 9:02am.

Bob and Bob Jr. stand at open doorways at opposite ends of an airplane hangar 25 m long. Anna owns a spaceship, 40 m long as it sits on the runway. Anna takes off in her spaceship, then swoops through the hangar at constant velocity. At precisely time zero on both Bob's clock and Anna's, Bob sees Anna at the front of her spaceship reach his doorway. At time zero on his clock, Bob Jr. sees the tail of Anna's spaceship at his doorway.

A) How fast is Anna's spaceship moving?
v/c = 0.781

L = Lo / Yv

--> 25 = 40 (square root) 1 - (v/c)^2

But how do you solve for v? I tried subtracting 25 and squaring it to get rid of the square root. But I just don't know how to get to v = 0.781 c

Thank you for any help

No one has answered this question yet.

Answer this Question

Related Questions

Physics - Bob and Bob Jr. stand at open doorways at opposite ends of an airplane...
Math - Anna and bob play a game in which Anna begins by rolling a fair dice, ...
Math/Probability - Anna and bob play a game in which Anna begins by rolling a ...
math stuff - suppose to arrage the names of the ppl in descending order of their...
Physics - A long jumper jumps at a 45 degree angle towards the right bank which ...
Physics based Calculus - Bob has just finished climbing a sheer cliff above a ...
physics - A 5 m long see saw has a child whose mass is 25 kg sitting on one end...
bus math 12 - Challenge Problem: Bob is closing a real estate transaction on a ...
physics - A 0.34 kg pendulum bob is attached to a string 1.2 m long. What is the...
College Physics - Bob has just finished climbing a sheer cliff above a beach, ...

For Further Reading

First Name:
School Subject:
Answer: