Newtons Second Law
What are the units for Mass?
Kg
Straight line up
Increasing Speed
What is the units for Force?
N (Newtons)
A car with a mass of 1,000 kg accelerates at 3 m/s². What is the net force needed?
3000 newtons
5N ----> O <------ 10N
Which direction is the ball moving?
<---- 5N
What are the units for acceleration?
m/s2
Horizontal line
___________
No movement (object is stopped distance isn't changing)
What is the formula for Mass?
M = F/A
A soccer ball of mass 0.5 kg is kicked and it accelerates at 40 m/s². What is the force applied?
20 Newtons
10N ---> O <--- 10N
Which direction is the ball moving?
The ball is balanced and will have no motion
This is how Newton's Second Law explains why a truck takes longer to stop than a motorcycle when both are traveling at the same speed.
The truck has more mass, so it requires more force to stop
A curve is rising and becoming steeper as time increases. What does this curve represent
What is the formula for Acceleration?
A = F/M
Acceleration = Force / Mass
A 10 kg object is accelerating at a rate of 2 m/s². What is the net force acting on it?
20 Newtons
30N ----> O ---> 30N
Which direction is the ball moving?
60N ---->
If you apply more force, an object will accelerate _____________
More
What is the formula for Force?
Force = Mass x Acceleration
A student pushes a 51.5 kilogram bookshelf across a smooth floor with a net force of 67 N. What is the approximate acceleration of the bookshelf?
1.3 m/s2
Which direction is the ball moving?
50N ---> O <--- 25N
25N --->
Give me a real life example of Newton's second Law
Pushing a shopping cart: The harder you push (more force), the faster it speeds up
Car acceleration: A small car accelerates faster than a big truck if the same force is a applied
Soccer Ball: If kicked hard (more force applied) the farther the ball will go
If an object has a mass of 10 kg and is accelerating 5 m/s², what is the force acting on it?
F =10 kg×5 m/s² = 50N
A car engine produces a force of 6,000 N to accelerate a 1,500 kg car. This is the car’s acceleration.
4 m/s2
If a ball is moving 10N to the right what does our blank have to be?
_____ ---> O <--- 10N
20N -->