Galaxy A moves away from galaxy B at 0.700 c0 relative to B. A spaceship leaves a planet in galaxy A traveling at 0.550 c0 relative to galaxy A. If the direction in which the ship travels is the same as the direction in which A is moving away from B, what do observers in B measure for the ship's speed?
The addition law in relativistic speed is also called a composition law for velocities. For collinear motions, the velocity of the sheep relative to observer in galaxy Bis given by
Observed speed,
s = v*u/(1+v*u/c^2)
= 0.55 c*0.70 c / (1+.55c*.70c/c^2)
=0.9025 c.
Galaxy A moves away from galaxy B at 0.700 c0 relative to B. A spaceship leaves...
Spaceship A moves away from Earth at a speed vA = 0.776c (see figure). Spaceship B pursues at a speed vB = 0.891c relative to Earth. Observers on Earth see B overtaking A at a relative speed of 0.115c. With what speed is B overtaking A as seen by the crew of spaceship B?
Spaceship A moves away from Earth at a speed vA = 0.728c (see figure). Spaceship B pursues at a speed vB = 0.981c relative to Earth. Observers on Earth see B overtaking A at a relative speed of 0.253c. With what speed is B overtaking A as seen by the crew of spaceship B?
A spaceship leaves Earth traveling at 0.75 c. A second spaceship leaves the first at a speed of 0.87 c with respect to the first. Part A Calculate the speed of the second ship with respect to Earth if it is fired in the same direction the first spaceship is already moving. Take the positive direction in the direction of the first spaceship. Part B Calculate the speed of the second ship with respect to Earth if it is fired...
A spaceship leaves Earth traveling 0.67c. A second spaceship leaves the first at a speed of 0.94c with respect to the first. Calculate the speed of the second ship with respect to Earth if it is fired as follows. a) In the same direction the first spaceship is already moving The correct answer for part a is 0.9878c but I can't seem to find the correct answer for part b. b) Directly backward toward Earth
A spaceship leaves Earth traveling at 0.75 c. A second spaceship leaves the first at a speed of0.92 c with respect to the first. Part A Calculate the speed of the second ship with respect to Earth if it is fired in the same direction the first spaceship is already moving. Take the positive direction in the direction of the first spaceship. Express your answer using two significant figures. u = ?c SubmitMy AnswersGive Up Part B Calculate the speed...
A spaceship at rest on the earth has a length of 120m and a mass of 16,000kg. Then the spaceship begins to move away from the earth at 3/4 speed of light. If the spaceship sends out a second ship away from the earth on what observers on the spaceship think is 1/2 speed of light, how fast do the observers on earth think the second ship is moving? If the spaceship sends out a second ship toward the earth...
PHYSICS II homework help! A spaceship travels at a constant speed from earth to a planet orbiting another star. When the spacecraft arrives, 10 years have elapsed on earth, and 8.7 elapsed on board the ship. How far away (in meters) is the planet, according to observers on earth?
A spaceship moves at a speed of 0.85 c away from the Earth. It shoots a torpedo toward the Earth at a speed of 0.8 c relative to the ship. The defenders of Earth respond by blasting high energy x-rays at the torpedo in an attempt to destroy it. What is the velocity of the x-rays relative to the Earth? -0.156 c 0.156 c 0.8 c 0.85 c c
Spaceship A moves at 0.800?0.800c in the positive ?-x-direction, while spaceship B moves in the opposite direction at 0.750?0.750c (both speeds are measured relative to Earth).What is the velocity ??{A,B}vx{A,B} of spaceship A relative to spaceship B?What is the velocity ??{E,A}vx{E,A} of Earth relative to spaceship A in multiples of the speed of light ??What is the velocity ??{E,B}vx{E,B} of Earth relative to spaceship B in multiples of the speed of light ??What is the velocity ??{A,B}vx{A,B} of spaceship A relative to spaceship B?
Two spaceships move away from the earth in opposite directions. spaceship A moves in one direction at 0.8c spaceship B the exact opposite direction also at 0.8c. What is the speed of spaceship B as measured by A and what is the speed of spaceship A as measured by B?