Newton's Second Law Answers

The gravitational acceleration on the moon is about one-sixth the size of the gravitational acceleration on Earth. According to Newton’s second law of motion, what happens to an astronaut who goes to the moon?

Which formula is used to calculate the mass of an object if the force and acceleration are known?

How much force is needed to accelerate an object of mass 90 kg at a rate of 1.2 m/s2?

An object pulled to the right by two forces has an acceleration of 2.5 m/s2. The free-body diagram shows the forces acting on the object.

A rocket experiences a constant force even as the amount of fuel in its fuel tanks decreases. What happens to the acceleration of the rocket as it runs out of fuel?

What is the mass of an object if a net force of 8.0 N causes it to accelerate at 1.1 m/s2?

Devon has several toy car bodies and motors. The motors have the same mass, but they provide different amounts of force, as shown in this table.The bodies have the masses shown in this table.

The gravitational acceleration on Earth is 9.8 m/s2. What is the weight of a car on Earth (to the nearest whole number) if it has a mass of 1360 kg?