If the speed of an object decreases to one-half, what happens to its momentum?
a. it decreases to one fourth.
b. it doubles.
c. it remains the same.
d. it decreases to one half.

The momentum of an object is

                      Momentum = (mass) times (speed) .

This simple formula shows that momentum is directly proportional
to speed.

Double the speed  ==>  double the momentum.

Triple the speed  ==>  triple the momentum.

Cut speed in half  ==>  cut momentum in half.

Reduce the speed  38.2%  ==>  reduce the momentum  38.2% .

etc.

answer:

q

step-by-step explanation:

a variable is something that can represnt any finite value 5 and 3 are not variables because they can only equal 5 and 3