The speed at which the package hits the ground is really fast! If a package hits the ground at such a speed, it can be crushed and also cause some serious damage on the ground. Which of the following would help decrease the speed with which the package hits the ground?

Choose A or B

A) Increase the plane's speed and height

B) Decrease the plane's speed and height

B. Decrease the plane’s speed and height

Explanation:

Decrease in speed of plane:

When the speed of the plane is decreased then initial velocity of the package will be lesser. As a result, final velocity will also be lesser because in this case final velocity depends upon the initial velocity.

Decrease in height:

According to law of conservation of energy:

Loss in potential energy = Gain in Kinetic energy  

                                 mgh = ½ mV^2

It means with the decrease in height less potential energy will be converted to kinetic energy. As package has constant mass so it will gain less velocity.

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