Upcoming SlideShare
×

# F= Ma

• 2,515 views

Presentation illustrating Newton's second law and centripetal force.

Presentation illustrating Newton's second law and centripetal force.

More in: Education , Technology
• Comment goes here.
Are you sure you want to
Be the first to comment
Be the first to like this

Total Views
2,515
On Slideshare
0
From Embeds
0
Number of Embeds
2

Shares
36
0
Likes
0

No embeds

### Report content

No notes for slide

### Transcript

• 1. Force and mass determine acceleration
• Newton’s second law
• Calculate force (F=ma)
• Force works in a circular motion
• 2. Newton’s second law
• The acceleration of an object increases with increased force and decreases with increased mass
Small force acceleration larger force acceleration small mass acceleration acceleration larger mass
• 3. Newton’s second law
• Also states that the direction in which an object accelerates is the same as the direction of the force
force acceleration
• 4. Calculating force
• Force= mass x acceleration
• F= ma
• Standard unit: newton (N)
• - The amount of force it takes to accelerate
• 1 kg of mass 1 m/s
2
• 5. What force is needed to accelerate a 10 kg shopping cart 3 m/s ?
• What do you know? m= 10 kg a= 3 m/s
• What do you want to find out? Force
• Write the formula: F= ma
• Substitute the formula: F= 10 kg x 3 m/s
• Calculate: F= 30 N
2 2 2
• 6.
• If a 5 kg ball is accelerating 1.2 m/s what is the force on it?
• F= ma
• F= 5 kg x 1.2 m/s
• F= 6 N
• A person on a scooter is accelerating 2 m/s . If the person has a mass of 50 kg, how much force is acting on the person?
• F= ma
• F= 50 kg x 2 m/s
• F= 100 N
2 2 2 2
• 7. Centripetal force
• Any force that keeps an object moving in a circle
• Force points towards center of a circle
The force that keeps the female skater moving in a circle is the pull exerted by her partner
• 8. Summary
• Newton’s second law: Acceleration increases with increased force; decreases with increased mass. An object accelerates in the same direction of the force.
• F= ma
• newton (N)
• Centripetal force: keeps an object going in a circle.