Newton's 2nd Law

What is Newton's 2nd Law?

• Every action has an equal and opposite reaction

• An object at rest stays at rest, an object in motion stays in motion.

• F = ma

• Friction

Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate?

• 20 m/s²

• 0.5 m/s²

• 2 m/s²

• 120 N

Find how much force the man will need to exert to move the car.

• 5000 N

• 50 N

• 20,000 N

• 500 N

If the man pushes with an equal amount of force, which object will accelerate more?

• Car because it has more mass

• Lawnmower because it has less mass

• Car because it has less mass

• Lawnmower because it has more mass

A 25 kg bike accelerates at 10 m/s². What was the force?

• 250 N

• 2.5 N

• 25 N

• 15 N

If an object was accelerating at 5 m/s², and a force of 10 newtons was required to accelerate it, what was the object's mass?

• 50 kg

• 2 kg

• 0.5 kg

• 5 kg

A force of 90N is applied to each cart below, which one will accelerate the fastest?

• Cart 1
• Cart 2
• Cart 3 
• Cart 4

If the mass of the car/man/parachute is 150 kg, what is their acceleration?

• 0.02 m/s²

• 50 m/s²

• 0.11 m/s²

• 8.82 m/s²

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

An object is accelerating at a rate of 6 m/s/s, then suddenly the net force triples. What is the new acceleration?

• 2 m/s/s

• 6 m/s/s

• 12 m/s/s

• 18 m/s/s