Last Updated On 01-06-2023 - By Jeesha Sara
A man stands at one end of a boat which is stationary in water. Neglect water resistance. The man now moves to the other end of the boat and again becomes stationary. The centre of mass of the ‘man plus boat’ system will remain stationary with respect to water
a)
only when the man is stationary initially and finally
b)
only if the man moves without acceleration on the boat
c)
only if the man and the boat have equal masses
d)
in all cases
A man stands at one end of a boat which is stationary in water. Neglect water resistance. The man now moves to the other end of the boat and again becomes stationary. The centre of mass of the ‘man plus boat’ system will remain stationary with respect to water
a)
only when the man is stationary initially and finally
b)
only if the man moves without acceleration on the boat
c)
only if the man and the boat have equal masses
d)
in all cases
Question ID - 100187 :-
A man stands at one end of a boat which is stationary in water. Neglect water resistance. The man now moves to the other end of the boat and again becomes stationary. The centre of mass of the ‘man plus boat’ system will remain stationary with respect to water
a)
only when the man is stationary initially and finally
b)
only if the man moves without acceleration on the boat
c)
only if the man and the boat have equal masses
d)
in all cases
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A man stands at one end of a boat which is stationary in water. Neglect water resistance. The man now moves to the other end of the boat and again becomes stationary. The centre of mass of the ‘man plus boat’ system will remain stationary with respect to water |
|
|
a) |
only when the man is stationary initially and finally |
|
b) |
only if the man moves without acceleration on the boat |
|
c) |
only if the man and the boat have equal masses |
|
d) |
in all cases |
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(d) As long as no external force acts on the system of ‘man+boat’, its centre of mass will remain stationary |
Next Question :
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A cannon of mass 1000 kg located at the base of an inclined plane fires a shell of mass 50 kg in horizontal direction with velocity 180 km/h. The angle of inclination of the inclined plane with the horizontal is |
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a) |
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b) |
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c) |
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d) |
None of these |
. The coefficient of friction between the cannon and inclined plane is 0.5. The maximum height, in metre, to which the cannon can ascend the inclined plane as a result of recoil is
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