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Class 10 Class 12
A plane flying horizontally at 100 m/s at a height of 1000 m releases a bomb from it. Find the time it takes to reach the ground.

We have,

Initial distance, yo = 0

Height attained after time t, y = 1000 m

Initial velocity, uy = 0 m/s

Acceleration, ay = 9.8 m/s2

Time = t

Now, using the equation of motion, we have

Therefore, 14.28 sec ia taken for the bomb to reach the ground.

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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.
1212 Views

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

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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Give three examples of scalar quantities.

Mass, temperature and energy
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