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Class 10 Class 12

An aircraft executes a horizontal loop of radius 1.00 km with a steady speed of 900
km/h. Compare its centripetal acceleration with the acceleration due to gravity

Radius of the loop, r = 1 km = 1000 m

Speed of the aircraft, v = 900 km/h = 900 × 5 / 18  =  250 m/s

Centripetal acceleration,

Acceleration due to gravity, g = 9.8 m/s2

Therefore,

ac / g = 62.5 / 9.8  =  6.38
ac = 6.38 g, is the required centripetal acceleration.
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What is a scalar quantity?

A physical quantity that requires only magnitude for its complete specification is called a scalar quantity.
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What is a vector quantity?

A physical quantity that requires direction along with magnitude, for its complete specification is called a vector quantity.
835 Views

Give three examples of vector quantities.

Force, impulse and momentum.
865 Views

Give three examples of scalar quantities.

Mass, temperature and energy
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What are the basic characteristics that a quantity must possess so that it may be a vector quantity?

A quantity must possess the direction and must follow the vector axioms. Any quantity that follows the vector axioms are classified as vectors.

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