Forces and Newton's Laws

Front

What is the net force when a person on the left exerts 45 N and a person on the right exerts 32 N?

Back

13 N

Front

What does the acceleration of an object depend on?

Back

The mass of the object and the force exerted on it.

Front

Which law explains why a lighter truck accelerates faster than a heavier truck when both are at a traffic light?

Back

Newton's second law.

Front

What is Newton's 3rd Law?

Back

For every action, there is an equal and opposite reaction.

Front

Calculate the momentum of a 50 kg ball rolling at 5 m/s.

Back

250 kg*m/s.

Front

What is the formula for calculating force?

Back

Force = mass × acceleration.

Front

Define inertia in the context of Newton's first law.

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the relationship between mass and acceleration according to Newton's second law?

Back

Acceleration is inversely proportional to mass when force is constant.

Front

What is the principle of conservation of momentum?

Back

In a closed system, the total momentum before an event is equal to the total momentum after the event.

Front

How does friction affect motion according to Newton's laws?

Back

Friction opposes motion, affecting the net force and acceleration of an object.