According to Newton’s third

Question

law of motion, which
statement is always correct?
If a moving object hits
another object, then
the second object will
push back.
If two moving objects
collide, then both will
stop moving.
If a moving object hits
another object, then
the second object will
start moving.
If two moving objects
collide, then they will
bounce off each other.

Answer 1

According to Newton's third law of motion, the correct statement is:

If a moving object hits another object, then the second object will push back.

This law states that for every action, there is an equal and opposite reaction. This means that when one object exerts a force on a second object, the second object exerts a force of equal magnitude and opposite direction back on the first object.

The other statements are not necessarily true:

• If two moving objects collide, then both will stop moving. (Not true; they may both continue moving, bounce off, or one may stop while the other continues.)
• If a moving object hits another object, then the second object will start moving. (Not necessarily true; it depends on the masses and velocities involved.)
• If two moving objects collide, then they will bounce off each other. (Not true; they may stick together, crash, or deform upon collision instead.)