Avehicle has an initial velocity of 30 meters per second. 30 seconds later it is travelling at a velocity of 60 meters per second. what is the acceleration of the veichel

What happens when chlorine reacts with bromine? a. electrons move from the chlorine atoms to the bromine atoms. b. electrons move from the bromine atoms to the chlorine atoms. c. electrons are shared between the chlorine atoms and the bromine atoms. d. electrons become delocalized among the atoms.

What is the speed of an object at a given moment?

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.