A plank, fixed to a sled at rest in a stationary frame S, is of length Lo and makes an angle of 44°with the x-axis. Later, the sled zooms through frame S at a constant velocity v parallel to the x-axis andthe angle appears to be 60° relative to the x-axis in frame S. What is the speed of the sled in terms of c,the speed of light in vacuum?44°60Figure 1: Problem 2.

A plank, fixed to a sled at rest in a stationary frame S, is of length L, and makes an angle of 44' x-axis. Later, the sled zooms through frame S at a constant velocity v parallel to the x-axis and e appears to be 60° relative to the x-axis in frame S. What is the speed of the sled in terms of c d of light in vacuum? Loi

A plank, fixed to a sled at rest in a stationary frame S, is of length L, and makes an angle of 44' x-axis. Later, the sled zooms through frame S at a constant velocity v parallel to the x-axis and e appears to be 60° relative to the x-axis in frame S. What is the speed of the sled in terms of c d of light in vacuum? Loi

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter5: Relativity

Section: Chapter Questions

Problem 84AP: An observer sees two events 1.5108s apart at a separation of 800 m. How fast must a second observer...

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Owen and Dina are at rest in frame S, which is moving with a speed of 0.600c with respect to frame S. They play a game of catch while Ed, at rest in frame S, watches the action (Fig. P26.45). Owen throws the ball to Dina with a speed of 0.800c (according to Owen) and their separation (measured in S) is equal to 1.80 1012 m. (a) According to Dina, how fast is the ball moving? (b) According to Dina, what time interval is required for the ball to reach her? According to Ed, (c) how far apart are Owen and Dina, and (d) how fast is the ball moving? Figure. P26.45
An observer sees two events 1.5108s apart at a separation of 800 m. How fast must a second observer be moving relative to the first to see the two events occur simultaneously?
A clock on a moving spacecraft runs 1 s slower per day relative to an identical clock on Earth. What is the relative speed of the spacecraft? (Hint: For v/c << 1, note that γ ≈ 1 + v2/2c2.)