268626
Six steel balls of identical size are lined up along a straight frictionless groove. Two similar balls moving with speed \(v\) along the groove collide with this row on the extreme left end. Then
1 one ball from the right end will move on with speed v
2 two balls from the extreme right end will move on with speed \(v\) and the remaining balls will be at rest
3 all the balls will start moving to the right with speed \(v / 8\)
4 all the six balls originally at rest will move on with speed v/6 and the incident balls will come to rest
Explanation:
Work, Energy and Power
268627
A lighter body moving with a velocity \(\mathbf{v}\) collides with a heavier body at rest. Then
1 the lighter body rebounced with twice the velocity of bigger body
2 the lighter body retraces its path with the same velocity in magnitude
3 the heavier body does not move practically
4 both (2) and (3)
Explanation:
Work, Energy and Power
268628
A heavier body moving with certain velocity collides head on elastically with a lighter body at rest, then
1 smaller body continues to be in the same state of rest
2 smaller body starts to move in the same direction with same velocity as that of bigger body
3 the smaller body start to move with twice the velocity of the bigger body in the same direction
4 the bigger body comes to rest
Explanation:
Work, Energy and Power
268629
A perfectly elastic ball \(P_{1}\) of mass ' \(m\) ' moving with velocity \(\mathbf{v}\) collides elastically with three exactly similar balls \(P_{2}, P_{3}, P_{4}\) lying on a smooth table. Velocity of the four balls after collision are
268626
Six steel balls of identical size are lined up along a straight frictionless groove. Two similar balls moving with speed \(v\) along the groove collide with this row on the extreme left end. Then
1 one ball from the right end will move on with speed v
2 two balls from the extreme right end will move on with speed \(v\) and the remaining balls will be at rest
3 all the balls will start moving to the right with speed \(v / 8\)
4 all the six balls originally at rest will move on with speed v/6 and the incident balls will come to rest
Explanation:
Work, Energy and Power
268627
A lighter body moving with a velocity \(\mathbf{v}\) collides with a heavier body at rest. Then
1 the lighter body rebounced with twice the velocity of bigger body
2 the lighter body retraces its path with the same velocity in magnitude
3 the heavier body does not move practically
4 both (2) and (3)
Explanation:
Work, Energy and Power
268628
A heavier body moving with certain velocity collides head on elastically with a lighter body at rest, then
1 smaller body continues to be in the same state of rest
2 smaller body starts to move in the same direction with same velocity as that of bigger body
3 the smaller body start to move with twice the velocity of the bigger body in the same direction
4 the bigger body comes to rest
Explanation:
Work, Energy and Power
268629
A perfectly elastic ball \(P_{1}\) of mass ' \(m\) ' moving with velocity \(\mathbf{v}\) collides elastically with three exactly similar balls \(P_{2}, P_{3}, P_{4}\) lying on a smooth table. Velocity of the four balls after collision are
268626
Six steel balls of identical size are lined up along a straight frictionless groove. Two similar balls moving with speed \(v\) along the groove collide with this row on the extreme left end. Then
1 one ball from the right end will move on with speed v
2 two balls from the extreme right end will move on with speed \(v\) and the remaining balls will be at rest
3 all the balls will start moving to the right with speed \(v / 8\)
4 all the six balls originally at rest will move on with speed v/6 and the incident balls will come to rest
Explanation:
Work, Energy and Power
268627
A lighter body moving with a velocity \(\mathbf{v}\) collides with a heavier body at rest. Then
1 the lighter body rebounced with twice the velocity of bigger body
2 the lighter body retraces its path with the same velocity in magnitude
3 the heavier body does not move practically
4 both (2) and (3)
Explanation:
Work, Energy and Power
268628
A heavier body moving with certain velocity collides head on elastically with a lighter body at rest, then
1 smaller body continues to be in the same state of rest
2 smaller body starts to move in the same direction with same velocity as that of bigger body
3 the smaller body start to move with twice the velocity of the bigger body in the same direction
4 the bigger body comes to rest
Explanation:
Work, Energy and Power
268629
A perfectly elastic ball \(P_{1}\) of mass ' \(m\) ' moving with velocity \(\mathbf{v}\) collides elastically with three exactly similar balls \(P_{2}, P_{3}, P_{4}\) lying on a smooth table. Velocity of the four balls after collision are
268626
Six steel balls of identical size are lined up along a straight frictionless groove. Two similar balls moving with speed \(v\) along the groove collide with this row on the extreme left end. Then
1 one ball from the right end will move on with speed v
2 two balls from the extreme right end will move on with speed \(v\) and the remaining balls will be at rest
3 all the balls will start moving to the right with speed \(v / 8\)
4 all the six balls originally at rest will move on with speed v/6 and the incident balls will come to rest
Explanation:
Work, Energy and Power
268627
A lighter body moving with a velocity \(\mathbf{v}\) collides with a heavier body at rest. Then
1 the lighter body rebounced with twice the velocity of bigger body
2 the lighter body retraces its path with the same velocity in magnitude
3 the heavier body does not move practically
4 both (2) and (3)
Explanation:
Work, Energy and Power
268628
A heavier body moving with certain velocity collides head on elastically with a lighter body at rest, then
1 smaller body continues to be in the same state of rest
2 smaller body starts to move in the same direction with same velocity as that of bigger body
3 the smaller body start to move with twice the velocity of the bigger body in the same direction
4 the bigger body comes to rest
Explanation:
Work, Energy and Power
268629
A perfectly elastic ball \(P_{1}\) of mass ' \(m\) ' moving with velocity \(\mathbf{v}\) collides elastically with three exactly similar balls \(P_{2}, P_{3}, P_{4}\) lying on a smooth table. Velocity of the four balls after collision are
