B. Free fall - _____________ where the ______________
1. Free fall Word Problems
Use same method and equations as before
Except always remember when you
read … an object is dropped:
Ø You Know
a. Simple Free fall problems
Ex) A coin is dropped in a vacuum tube, find its displacement after .3 seconds.
¨ Find the coin's velocity after .3 seconds
Ex) A rocket is fired vertically upward with an initial velocity of 29 m/s. When the rocket reaches its maximum altitude it has a velocity of 0 m/sec. Find the rocket's maximum altitude.
Ex) An object dropped on planet X falls 64 m in 4 seconds. Find the acceleration due to gravity on planet X.
b. Objects propelled horizontally also fall_______________ at a rate of __
Ex 1) A rock is thrown horizontally from the top of a cliff @ 150m/s. How long does it take the rock to fall 45m vertically?
Find the vertical velocity of the rock at 45 meters