MOTION UNDER GRAVITY
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MOTION IN A STRIGHT LINE

269676 The average velocity of a freely falling body is numerically equal to half of the acceleration dueto gravity. The velocity of the body as it reaches the ground is

1 \(g\)
2 \(\frac{g}{2}\)
3 \(\frac{g}{\sqrt{2}}\)
4 \(\sqrt{2} g\)
MOTION IN A STRIGHT LINE

269714 A ballisthrown straight upward with a speed \(v\) from a point \(h\) meter abovetheground. The timetaken for theball to strike the ground is

1 \(\frac{\mathrm{v}}{\mathrm{g}}\left[1+\sqrt{1+\frac{2 \mathrm{~h} g}{\mathrm{~V}^{2}}}\right]\)
2 \(\frac{v}{g}\left[1-\sqrt{1-\frac{2 \mathrm{hg}}{v^{2}}}\right]\)
3 \(\frac{v}{g}\left[1-\sqrt{1+\frac{2 h g}{v^{2}}}\right]\)
4 \(\frac{v}{g}\left[2+\frac{2 h g}{v^{2}}\right]\)
MOTION IN A STRIGHT LINE

269715 A ballisdropped on the floor from a height of \(10 \mathrm{~m}\). It rebounds to a height of \(2.5 \mathrm{~m}\). If the ball is in contact with the floor for \(0.01 \mathrm{~s}\), then the average acceleration during contact is nearly

1 \(500 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) upwards
2 \(1800 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) dowrwards
3 \(1500 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) upwards
4 \(1500 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) dowrwards
MOTION IN A STRIGHT LINE

269716 A body falling from rest has a velocity '\(v\) ' after itfallsthrough a distance' \(h\) '. Thedistance it has to fall down further, for its velocity to become double, is ..... times ' \(h\) '.

1 5
2 1
3 2
4 3
MOTION IN A STRIGHT LINE

269730 Two balls are projected simultaneously with the same velocity '\(u\) ' from the top of a tower, one vertically upwards and the other vertically downwards. Their respectivetimes of the journeys are \(t\) and \(t\). At the time of reaching the ground, the ratio of their final velocities is

1 \(1: 1\)
2 \(1: 2\)
3 \(2: 3\)
4 \(2: 1\)
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MOTION IN A STRIGHT LINE

269676 The average velocity of a freely falling body is numerically equal to half of the acceleration dueto gravity. The velocity of the body as it reaches the ground is

1 \(g\)
2 \(\frac{g}{2}\)
3 \(\frac{g}{\sqrt{2}}\)
4 \(\sqrt{2} g\)
MOTION IN A STRIGHT LINE

269714 A ballisthrown straight upward with a speed \(v\) from a point \(h\) meter abovetheground. The timetaken for theball to strike the ground is

1 \(\frac{\mathrm{v}}{\mathrm{g}}\left[1+\sqrt{1+\frac{2 \mathrm{~h} g}{\mathrm{~V}^{2}}}\right]\)
2 \(\frac{v}{g}\left[1-\sqrt{1-\frac{2 \mathrm{hg}}{v^{2}}}\right]\)
3 \(\frac{v}{g}\left[1-\sqrt{1+\frac{2 h g}{v^{2}}}\right]\)
4 \(\frac{v}{g}\left[2+\frac{2 h g}{v^{2}}\right]\)
MOTION IN A STRIGHT LINE

269715 A ballisdropped on the floor from a height of \(10 \mathrm{~m}\). It rebounds to a height of \(2.5 \mathrm{~m}\). If the ball is in contact with the floor for \(0.01 \mathrm{~s}\), then the average acceleration during contact is nearly

1 \(500 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) upwards
2 \(1800 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) dowrwards
3 \(1500 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) upwards
4 \(1500 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) dowrwards
MOTION IN A STRIGHT LINE

269716 A body falling from rest has a velocity '\(v\) ' after itfallsthrough a distance' \(h\) '. Thedistance it has to fall down further, for its velocity to become double, is ..... times ' \(h\) '.

1 5
2 1
3 2
4 3
MOTION IN A STRIGHT LINE

269730 Two balls are projected simultaneously with the same velocity '\(u\) ' from the top of a tower, one vertically upwards and the other vertically downwards. Their respectivetimes of the journeys are \(t\) and \(t\). At the time of reaching the ground, the ratio of their final velocities is

1 \(1: 1\)
2 \(1: 2\)
3 \(2: 3\)
4 \(2: 1\)
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MOTION IN A STRIGHT LINE

269676 The average velocity of a freely falling body is numerically equal to half of the acceleration dueto gravity. The velocity of the body as it reaches the ground is

1 \(g\)
2 \(\frac{g}{2}\)
3 \(\frac{g}{\sqrt{2}}\)
4 \(\sqrt{2} g\)
MOTION IN A STRIGHT LINE

269714 A ballisthrown straight upward with a speed \(v\) from a point \(h\) meter abovetheground. The timetaken for theball to strike the ground is

1 \(\frac{\mathrm{v}}{\mathrm{g}}\left[1+\sqrt{1+\frac{2 \mathrm{~h} g}{\mathrm{~V}^{2}}}\right]\)
2 \(\frac{v}{g}\left[1-\sqrt{1-\frac{2 \mathrm{hg}}{v^{2}}}\right]\)
3 \(\frac{v}{g}\left[1-\sqrt{1+\frac{2 h g}{v^{2}}}\right]\)
4 \(\frac{v}{g}\left[2+\frac{2 h g}{v^{2}}\right]\)
MOTION IN A STRIGHT LINE

269715 A ballisdropped on the floor from a height of \(10 \mathrm{~m}\). It rebounds to a height of \(2.5 \mathrm{~m}\). If the ball is in contact with the floor for \(0.01 \mathrm{~s}\), then the average acceleration during contact is nearly

1 \(500 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) upwards
2 \(1800 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) dowrwards
3 \(1500 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) upwards
4 \(1500 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) dowrwards
MOTION IN A STRIGHT LINE

269716 A body falling from rest has a velocity '\(v\) ' after itfallsthrough a distance' \(h\) '. Thedistance it has to fall down further, for its velocity to become double, is ..... times ' \(h\) '.

1 5
2 1
3 2
4 3
MOTION IN A STRIGHT LINE

269730 Two balls are projected simultaneously with the same velocity '\(u\) ' from the top of a tower, one vertically upwards and the other vertically downwards. Their respectivetimes of the journeys are \(t\) and \(t\). At the time of reaching the ground, the ratio of their final velocities is

1 \(1: 1\)
2 \(1: 2\)
3 \(2: 3\)
4 \(2: 1\)
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MOTION IN A STRIGHT LINE

269676 The average velocity of a freely falling body is numerically equal to half of the acceleration dueto gravity. The velocity of the body as it reaches the ground is

1 \(g\)
2 \(\frac{g}{2}\)
3 \(\frac{g}{\sqrt{2}}\)
4 \(\sqrt{2} g\)
MOTION IN A STRIGHT LINE

269714 A ballisthrown straight upward with a speed \(v\) from a point \(h\) meter abovetheground. The timetaken for theball to strike the ground is

1 \(\frac{\mathrm{v}}{\mathrm{g}}\left[1+\sqrt{1+\frac{2 \mathrm{~h} g}{\mathrm{~V}^{2}}}\right]\)
2 \(\frac{v}{g}\left[1-\sqrt{1-\frac{2 \mathrm{hg}}{v^{2}}}\right]\)
3 \(\frac{v}{g}\left[1-\sqrt{1+\frac{2 h g}{v^{2}}}\right]\)
4 \(\frac{v}{g}\left[2+\frac{2 h g}{v^{2}}\right]\)
MOTION IN A STRIGHT LINE

269715 A ballisdropped on the floor from a height of \(10 \mathrm{~m}\). It rebounds to a height of \(2.5 \mathrm{~m}\). If the ball is in contact with the floor for \(0.01 \mathrm{~s}\), then the average acceleration during contact is nearly

1 \(500 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) upwards
2 \(1800 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) dowrwards
3 \(1500 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) upwards
4 \(1500 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) dowrwards
MOTION IN A STRIGHT LINE

269716 A body falling from rest has a velocity '\(v\) ' after itfallsthrough a distance' \(h\) '. Thedistance it has to fall down further, for its velocity to become double, is ..... times ' \(h\) '.

1 5
2 1
3 2
4 3
MOTION IN A STRIGHT LINE

269730 Two balls are projected simultaneously with the same velocity '\(u\) ' from the top of a tower, one vertically upwards and the other vertically downwards. Their respectivetimes of the journeys are \(t\) and \(t\). At the time of reaching the ground, the ratio of their final velocities is

1 \(1: 1\)
2 \(1: 2\)
3 \(2: 3\)
4 \(2: 1\)
Join With Us for More Updates
MOTION IN A STRIGHT LINE

269676 The average velocity of a freely falling body is numerically equal to half of the acceleration dueto gravity. The velocity of the body as it reaches the ground is

1 \(g\)
2 \(\frac{g}{2}\)
3 \(\frac{g}{\sqrt{2}}\)
4 \(\sqrt{2} g\)
MOTION IN A STRIGHT LINE

269714 A ballisthrown straight upward with a speed \(v\) from a point \(h\) meter abovetheground. The timetaken for theball to strike the ground is

1 \(\frac{\mathrm{v}}{\mathrm{g}}\left[1+\sqrt{1+\frac{2 \mathrm{~h} g}{\mathrm{~V}^{2}}}\right]\)
2 \(\frac{v}{g}\left[1-\sqrt{1-\frac{2 \mathrm{hg}}{v^{2}}}\right]\)
3 \(\frac{v}{g}\left[1-\sqrt{1+\frac{2 h g}{v^{2}}}\right]\)
4 \(\frac{v}{g}\left[2+\frac{2 h g}{v^{2}}\right]\)
MOTION IN A STRIGHT LINE

269715 A ballisdropped on the floor from a height of \(10 \mathrm{~m}\). It rebounds to a height of \(2.5 \mathrm{~m}\). If the ball is in contact with the floor for \(0.01 \mathrm{~s}\), then the average acceleration during contact is nearly

1 \(500 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) upwards
2 \(1800 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) dowrwards
3 \(1500 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) upwards
4 \(1500 \sqrt{2} \mathrm{~m} / \mathrm{s}^{2}\) dowrwards
MOTION IN A STRIGHT LINE

269716 A body falling from rest has a velocity '\(v\) ' after itfallsthrough a distance' \(h\) '. Thedistance it has to fall down further, for its velocity to become double, is ..... times ' \(h\) '.

1 5
2 1
3 2
4 3
MOTION IN A STRIGHT LINE

269730 Two balls are projected simultaneously with the same velocity '\(u\) ' from the top of a tower, one vertically upwards and the other vertically downwards. Their respectivetimes of the journeys are \(t\) and \(t\). At the time of reaching the ground, the ratio of their final velocities is

1 \(1: 1\)
2 \(1: 2\)
3 \(2: 3\)
4 \(2: 1\)