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Motion in A Plane
Question
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A ball is dropped from a certain point. At the same time another ball is fired horizontally from the same height. Which one will hit the ground earlier? Explain.

Answer

Initial velocity of both the balls in vertical direction is zero. So, height by which both the balls have to fall is the same. Therefore, both the balls will hit the ground simultaneously. 

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Some More Questions From Motion in A Plane Chapter

What is a scalar quantity?

What is a vector quantity?

Give three examples of scalar quantities.

Give three examples of vector quantities.

What are the basic characteristics that a quantity must possess so that it may be a vector quantity?

Is a physical quantity, having a direction, necessarily a vector?

Name a quantity which is both scalar as well as vector.

Which of the followings is/are vector quantities: work, power, acceleration, mass, momentum?

Pick up the odd one from the following: force, linear momentum, mass, impulse.

Pick out the only vector quantities in the following list:
Temperature, pressure, impulse, time, power, total path length, energy, gravitational potential, coefficient of friction and charge.