Newton's 2nd Law

What is Newton's Second Law Equation:

• A = S/T

• F = M x A

• S = D/T

• There is no equation for this law

If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration?  (F=ma)

• The one with a mass of .78 kg will have the greatest acceleration.
• The one with a mass of .52 kg will have the greatest acceleration.
• They will both accelerate at the same rate.

A 20 kg bike accelerates at 10 m/s².  what was the force?

• 25 Newtons
• 20 Newtons
• 200 Newtons
• 10 Newtons

Example: If you use the same force to push a truck and push a car, which one will have more acceleration and why?

• The car because it is faster

• The truck because is has more mass

• The car because is has less mass

• The truck because is has better suspension

True or false? It is harder to pull a puppy than it is to pull a dog.

• True

• False

True of false? Is is easier to kick a beach ball than it is a basketball.

• True

• False

Who came up with the laws of motion

• Albert Einstein

• Isaac Newton

• Mark Twain

• Leonard Da Vinci

Which is easier and why? Pushing an empty shopping cart or a full shopping cart?

• The full cart because it stays straight

• The full cart because it has a better center of gravity

• The empty cart because it has less mass

• The empty cart because it requires more force

True or false? It is easier to throw a bowling ball then it is a soccer ball.

• True

• False

Mike's car with a mass of 1,000kg is out of gas. Mike is trying to push the car to a gas station, and he makes the car accelerate at 0.05 m/s/s. Using Newton's 2nd law, compute the force Mike is applying to the car. (F=M x A)

• 5 Newtons

• 50 Newtons

• 20 Newtons

• 100 Newtons