362437 A rocket travelling at a speed of \(200\,m{\rm{/}}s\) ejects its products of combustion at the speed of \(1200\,m{\rm{/}}s\) relative to the rocket, then the speed of escaping vapours with respect to the person on the ground is:

362438 Two trains each of length 50 \(m\) are running with constant speeds on parallel tracks. While moving in same direction one overtakes the other in 40 seconds and while moving in opposite direction one crosses the other in 20 seconds. The speeds of the trains will be

362439 A ball \(A\) is thrown up vertically with a speed \(u\) and at the same instant another ball \(B\) is released from a height \(h\). At time \(t\), the speed of \(A\) relative to \(B\) is

362440 A passenger sitting in a train \(A\) moving at \(90\;km{\rm{/}}h\) observes another train \(B\) moving in the opposite direction for \(8 s\). If the velocity of the train \(B\) is \(54\;km{\rm{/}}h\), then length of train \(B\) is

362437 A rocket travelling at a speed of \(200\,m{\rm{/}}s\) ejects its products of combustion at the speed of \(1200\,m{\rm{/}}s\) relative to the rocket, then the speed of escaping vapours with respect to the person on the ground is:

362438 Two trains each of length 50 \(m\) are running with constant speeds on parallel tracks. While moving in same direction one overtakes the other in 40 seconds and while moving in opposite direction one crosses the other in 20 seconds. The speeds of the trains will be

362439 A ball \(A\) is thrown up vertically with a speed \(u\) and at the same instant another ball \(B\) is released from a height \(h\). At time \(t\), the speed of \(A\) relative to \(B\) is

362440 A passenger sitting in a train \(A\) moving at \(90\;km{\rm{/}}h\) observes another train \(B\) moving in the opposite direction for \(8 s\). If the velocity of the train \(B\) is \(54\;km{\rm{/}}h\), then length of train \(B\) is

362437 A rocket travelling at a speed of \(200\,m{\rm{/}}s\) ejects its products of combustion at the speed of \(1200\,m{\rm{/}}s\) relative to the rocket, then the speed of escaping vapours with respect to the person on the ground is:

362438 Two trains each of length 50 \(m\) are running with constant speeds on parallel tracks. While moving in same direction one overtakes the other in 40 seconds and while moving in opposite direction one crosses the other in 20 seconds. The speeds of the trains will be

362439 A ball \(A\) is thrown up vertically with a speed \(u\) and at the same instant another ball \(B\) is released from a height \(h\). At time \(t\), the speed of \(A\) relative to \(B\) is

362440 A passenger sitting in a train \(A\) moving at \(90\;km{\rm{/}}h\) observes another train \(B\) moving in the opposite direction for \(8 s\). If the velocity of the train \(B\) is \(54\;km{\rm{/}}h\), then length of train \(B\) is

362437 A rocket travelling at a speed of \(200\,m{\rm{/}}s\) ejects its products of combustion at the speed of \(1200\,m{\rm{/}}s\) relative to the rocket, then the speed of escaping vapours with respect to the person on the ground is:

362438 Two trains each of length 50 \(m\) are running with constant speeds on parallel tracks. While moving in same direction one overtakes the other in 40 seconds and while moving in opposite direction one crosses the other in 20 seconds. The speeds of the trains will be

362439 A ball \(A\) is thrown up vertically with a speed \(u\) and at the same instant another ball \(B\) is released from a height \(h\). At time \(t\), the speed of \(A\) relative to \(B\) is

362440 A passenger sitting in a train \(A\) moving at \(90\;km{\rm{/}}h\) observes another train \(B\) moving in the opposite direction for \(8 s\). If the velocity of the train \(B\) is \(54\;km{\rm{/}}h\), then length of train \(B\) is