Newtons Second Law (GCSE Physics)

A rocket accelerates upwards by 20 m/s^2. If the thrust minus weight equals the resultant force, and the rocket mass is 2000 kg, what is the resultant force?

Which of these scenarios directly illustrates Newton’s Second Law?

An object of mass m has acceleration a under force F. If mass becomes 3m and same force applied, what is new acceleration?

Why does loading a truck close to its maximum mass increase stopping distances for the same braking force?

A box on a level floor has a horizontal push of 50 N and friction of 30 N opposing the motion. If the box mass is 10 kg, what is the acceleration?

If the force on an object doubles while the mass stays constant, what happens to the acceleration?

If the resultant force on an object is zero, which statement is true about the object?

A fighter jet increases its acceleration by reducing mass via fuel burn while thrust remains constant. How does Newton’s Second Law explain the change in acceleration?

A force sensor records a sudden spike when two objects collide and then drops to zero while objects separate. Which Newton’s law explains why the force spike occurs proportional to the masses and accelerations?

How does increasing the mass of an object affect its acceleration when the same resultant force is applied?

A 5 kg object experiences a resultant force of 20 N. What is its acceleration?