If two objects are electrically attracted to each other, Group of answer choices both objects must be negatively charged both objects must be positively charged. one object must be negatively charged and the other object must be positively charged one objects could be electrically neutral. None of the statements are absolutely true.

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

hope this ! : )