Is it harder to stop a large truck that a small car when both are moving at the same velocity? why or why not?

A large truck because it has more weight.

Yes because the greater mass of the truck has more momentum

Hi; /c

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts