Relative Motion in One Dimension
PHXI03:MOTION IN A STRAIGHT LINE

362454 A man is 45 \(m\) behind the bus, when the bus starts accelerating from rest with acceleration \(2.5\; ms^{-2}\). With what minimum velocity should the man start running to catch the bus \(B\) in time \(t = 6s\)?

1 \(16\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
2 \(12\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
3 \(15\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
4 \(14\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
PHXI03:MOTION IN A STRAIGHT LINE

362455 Two trains '\(A\)' and '\(B\)' of length '\(l\)' and '\(4 l\)' are travelling into a tunnel of length '\(L\)' in parallel tracks from opposite directions with velocities \(108\;km{\rm{/}}h\) and \(72\;km{\rm{/}}h\), respectively. If train '\(A\)' takes \(35 s\) less time than train '\(B\)' to cross the tunnel then, length '\(L\)' of tunnel is
(Given \(L = 60l\))

1 \(1200\;m\)
2 \(2700\;m\)
3 \(1800\;m\)
4 \(900\;m\)
PHXI03:MOTION IN A STRAIGHT LINE

362456 A bird is tossing (flying to and fro) between two cars moving towards each other on a straight road. One car has speed of \(27\;km\;{h^{ - 1}}\) while the other has the speed of \(18\;km\;{h^{ - 1}}\). The bird starts moving from first car towards the other and is moving with the speed of \(36\;km\;{h^{ - 1}}\) when the two cars were separated by \(36\;km\). The total distance covered by the bird is:

1 \(28.8\;km\)
2 \(38.8\;km\)
3 \(48.8\;km\)
4 \(58.8\;km\)
PHXI03:MOTION IN A STRAIGHT LINE

362457 A man swimming downstream overcome a float at a point \(M\). After travelling distance \(D\) he turned back and passed the float at a distance of \(D\)/2 from the point \(M\), then the ratio of speed of swimmer with respect to still water to the speed of the river will be

1 \(2\)
2 \(3\)
3 \(4\)
4 \(2.5\)
PHXI03:MOTION IN A STRAIGHT LINE

362454 A man is 45 \(m\) behind the bus, when the bus starts accelerating from rest with acceleration \(2.5\; ms^{-2}\). With what minimum velocity should the man start running to catch the bus \(B\) in time \(t = 6s\)?

1 \(16\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
2 \(12\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
3 \(15\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
4 \(14\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
PHXI03:MOTION IN A STRAIGHT LINE

362455 Two trains '\(A\)' and '\(B\)' of length '\(l\)' and '\(4 l\)' are travelling into a tunnel of length '\(L\)' in parallel tracks from opposite directions with velocities \(108\;km{\rm{/}}h\) and \(72\;km{\rm{/}}h\), respectively. If train '\(A\)' takes \(35 s\) less time than train '\(B\)' to cross the tunnel then, length '\(L\)' of tunnel is
(Given \(L = 60l\))

1 \(1200\;m\)
2 \(2700\;m\)
3 \(1800\;m\)
4 \(900\;m\)
PHXI03:MOTION IN A STRAIGHT LINE

362456 A bird is tossing (flying to and fro) between two cars moving towards each other on a straight road. One car has speed of \(27\;km\;{h^{ - 1}}\) while the other has the speed of \(18\;km\;{h^{ - 1}}\). The bird starts moving from first car towards the other and is moving with the speed of \(36\;km\;{h^{ - 1}}\) when the two cars were separated by \(36\;km\). The total distance covered by the bird is:

1 \(28.8\;km\)
2 \(38.8\;km\)
3 \(48.8\;km\)
4 \(58.8\;km\)
PHXI03:MOTION IN A STRAIGHT LINE

362457 A man swimming downstream overcome a float at a point \(M\). After travelling distance \(D\) he turned back and passed the float at a distance of \(D\)/2 from the point \(M\), then the ratio of speed of swimmer with respect to still water to the speed of the river will be

1 \(2\)
2 \(3\)
3 \(4\)
4 \(2.5\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXI03:MOTION IN A STRAIGHT LINE

362454 A man is 45 \(m\) behind the bus, when the bus starts accelerating from rest with acceleration \(2.5\; ms^{-2}\). With what minimum velocity should the man start running to catch the bus \(B\) in time \(t = 6s\)?

1 \(16\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
2 \(12\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
3 \(15\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
4 \(14\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
PHXI03:MOTION IN A STRAIGHT LINE

362455 Two trains '\(A\)' and '\(B\)' of length '\(l\)' and '\(4 l\)' are travelling into a tunnel of length '\(L\)' in parallel tracks from opposite directions with velocities \(108\;km{\rm{/}}h\) and \(72\;km{\rm{/}}h\), respectively. If train '\(A\)' takes \(35 s\) less time than train '\(B\)' to cross the tunnel then, length '\(L\)' of tunnel is
(Given \(L = 60l\))

1 \(1200\;m\)
2 \(2700\;m\)
3 \(1800\;m\)
4 \(900\;m\)
PHXI03:MOTION IN A STRAIGHT LINE

362456 A bird is tossing (flying to and fro) between two cars moving towards each other on a straight road. One car has speed of \(27\;km\;{h^{ - 1}}\) while the other has the speed of \(18\;km\;{h^{ - 1}}\). The bird starts moving from first car towards the other and is moving with the speed of \(36\;km\;{h^{ - 1}}\) when the two cars were separated by \(36\;km\). The total distance covered by the bird is:

1 \(28.8\;km\)
2 \(38.8\;km\)
3 \(48.8\;km\)
4 \(58.8\;km\)
PHXI03:MOTION IN A STRAIGHT LINE

362457 A man swimming downstream overcome a float at a point \(M\). After travelling distance \(D\) he turned back and passed the float at a distance of \(D\)/2 from the point \(M\), then the ratio of speed of swimmer with respect to still water to the speed of the river will be

1 \(2\)
2 \(3\)
3 \(4\)
4 \(2.5\)
PHXI03:MOTION IN A STRAIGHT LINE

362454 A man is 45 \(m\) behind the bus, when the bus starts accelerating from rest with acceleration \(2.5\; ms^{-2}\). With what minimum velocity should the man start running to catch the bus \(B\) in time \(t = 6s\)?

1 \(16\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
2 \(12\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
3 \(15\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
4 \(14\;{{\mathop{\rm ms}\nolimits} ^{ - 1}}\)
PHXI03:MOTION IN A STRAIGHT LINE

362455 Two trains '\(A\)' and '\(B\)' of length '\(l\)' and '\(4 l\)' are travelling into a tunnel of length '\(L\)' in parallel tracks from opposite directions with velocities \(108\;km{\rm{/}}h\) and \(72\;km{\rm{/}}h\), respectively. If train '\(A\)' takes \(35 s\) less time than train '\(B\)' to cross the tunnel then, length '\(L\)' of tunnel is
(Given \(L = 60l\))

1 \(1200\;m\)
2 \(2700\;m\)
3 \(1800\;m\)
4 \(900\;m\)
PHXI03:MOTION IN A STRAIGHT LINE

362456 A bird is tossing (flying to and fro) between two cars moving towards each other on a straight road. One car has speed of \(27\;km\;{h^{ - 1}}\) while the other has the speed of \(18\;km\;{h^{ - 1}}\). The bird starts moving from first car towards the other and is moving with the speed of \(36\;km\;{h^{ - 1}}\) when the two cars were separated by \(36\;km\). The total distance covered by the bird is:

1 \(28.8\;km\)
2 \(38.8\;km\)
3 \(48.8\;km\)
4 \(58.8\;km\)
PHXI03:MOTION IN A STRAIGHT LINE

362457 A man swimming downstream overcome a float at a point \(M\). After travelling distance \(D\) he turned back and passed the float at a distance of \(D\)/2 from the point \(M\), then the ratio of speed of swimmer with respect to still water to the speed of the river will be

1 \(2\)
2 \(3\)
3 \(4\)
4 \(2.5\)