Saved Bookmarks
| 1. |
A car is moving towards a plane mirror at a speed of 30m/sec. then the relative velocity of its image with respect to the car will be;15m/s45m/s60m/s30m/s |
|
Answer» Answer: x’ = -x, where x is POSITION of observer and x’ is position of the image. With mirror at 0. So, if dx/DT = 2 m/s, dx’/dt = -dx/dt = - 30m/s. using the classical formula for relative speed, VREL = dx’/dt - dx/dt = -2dx/dt = -60m/s. So, the image is approaching the observer at 60 m/s. Hence option B is the right answer Explanation: answer is 60 m/ s Give THANKS |
|