1. A military helicopter on a training mission is flying horizontally at a speed of 60.0 m/s and accidentally drops a bomb (fortunately not armed) at an elevation of 300 m. You can ignore air resistance (a) How much time is required for the bomb to reach the earth? (b)How far does it travel horizontally while falling? (c) Find the horizontal and vertical components of its velocity just before it strikes the earth.
i just need to know how to get c. i don't understand how to get it.

Question

anonymous · Answer

If you've completed parts A & B, then you are almost done.  The last part c wants to know the final velocity (just prior to striking the ground, but at height = 0m) in component form.  Since this is projectile motion, and the horizontal component of velocity would not change, the given 60.0 m/s is the horizontal component.  Now all you have to do is use the time value you found for part A to calculate how fast the bomb is moving in the vertical direction, and you will have the vertical component.  (As an aside, remember velocity includes direction so those component should technically include a direction.)