james
Lv 4
james asked in Science & MathematicsPhysics · 1 decade ago

AP Physics Homework Help?

An object is dropped from rest from a certain height. Air resistance is negligible. After falling a distance d, the object's kinetic energy is proportional to which of the following?

A) 1/d^2

B) 1/d

C) sqrt of d

D) d

E) d^2

3 Answers

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  • goober
    Lv 7
    1 decade ago
    Favorite Answer

    D) d

    Change in potential energy, m g d, is converted to kinetic energy

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  • holcy
    Lv 4
    3 years ago

    Draw a photo first. this can sort a triangle from the airplane immediately all the way down to the floor, up the hill, and then again horizontally to the airplane. you note of between the legs and from trig you'll locate out between the angles. From that practise you locate out that horizontal area of the traingle (that is the area the pilot will fly earlier he hits the floor. once you locate this distance, use the formula d=v*t with d=distance, v=speed, t=time to remedy for a way lengthy the pilot has until eventually hitting the floor.

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  • ?
    Lv 4
    1 decade ago

    D is correct.

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