A man is standing at centre of frictionless pond of ice. How can he get himself to shore

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4-1.Newton's Laws of Motion

easy

A man is standing at the centre of frictionless pond of ice. How can he get himself to the shore

By throwing his shirt in vertically upward direction

By spitting horizontally

He will wait for the ice to melt in pond

Unable to get at the shore

Solution

A man must throw his shirt in the opposite direction of the desired direction of motion.

By spitting horizontal he will feel an opposite force to the spitting according to Newton's third laws of motion as there is very much less friction so he can move opposite to the spitting and so this way he will able to conserve momentum in an opposite direction.

Standard 11

Physics

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easy

(AIIMS-2001)

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medium

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hard

(NEET-2022)

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medium

A man is standing at the centre of frictionless pond of ice. How can he get himself to the shore

Solution

Similar Questions

A gun fires a bullet of mass $50 \,gm$ with a velocity of $30\,m\,{\sec ^{ – 1}}$. Because of this the gun is pushed back with a velocity of $1\,m\,{\sec ^{ – 1}}$. The mass of the gun is ………. $kg$

A body of mass $M$ at rest explodes into three pieces, two of which of mass $M/4$ each are thrown off in perpendicular directions with velocities of $3\, m/s$ and $4\, m/s$ respectively. The third piece will be thrown off with a velocity of ………. $m/s$

A nucleus is at rest in the laboratory frame of reference. Show that if it disintegrates into two smaller nuclei the products must move in opposite directions.

A shell of mass $m$ is at rest initially. It explodes into three fragments having mass in the ratio $2: 2: 1$. If the fragments having equal mass fly off along mutually perpendicular directions with speed $v$, the speed of the third (lighter) fragment is :

An object of mass $3\,m$ splits into three equal fragments. Two fragments have velocities $v\hat j$ and $v\hat i$. The velocity of the third fragment is

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