Scientists of Britain have built a “Gravity Tractor”. Identify the

1.	Scientists of Britain have built a “Gravity Tractor”. Identify the same from the following: (a) A double storeyed “Jugaad” type tractor trolley to be used in public transport. (b) A tractor with a mechanism to sweep public roads and is economical to run. (c) A bullet train run on the principle of earth’s gravity with the help of powerful magnets. (d) A space-craft with a mechanism which would check asteroids from hitting the earth.
Answer» (d) A space-craft with a mechanism which would check asteroids from hitting the earth. A 'Gravity tractor' (GT) is a spacecraft with a mechanism that can deflect another object in space without physically contacting it. It will use only its gravitational field to transmit the required impulse. It can affect a potentially hazardous asteroid that might hit earth.

Scientists of Britain have built a “Gravity Tractor”. Identify the same from the following: (a) A double storeyed “Jugaad” type tractor trolley to be used in public transport. (b) A tractor with a mechanism to sweep public roads and is economical to run. (c) A bullet train run on the principle of earth’s gravity with the help of powerful magnets. (d) A space-craft with a mechanism which would check asteroids from hitting the earth.

Answer»

(d) A space-craft with a mechanism which would check asteroids from hitting the earth.

A 'Gravity tractor' (GT) is a spacecraft with a mechanism that can deflect another object in space without physically contacting it. It will use only its gravitational field to transmit the required impulse. It can affect a potentially hazardous asteroid that might hit earth.

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