Download presentation

Presentation is loading. Please wait.

1
**Newton’s Universal Law of Gravitation**

3
Factors Affecting the Gravitational Force mass distance

4
**force varies directly with masses**

decrease mass decreased force force varies directly with masses Fg α m1 m2

5
Distance r increase r force decreased

6
Force varies inversely with distance squared Fg α 1/r2

7
Fg α m1m2 Fg α 1/r2 m1 m2 Fg α r2 Fg slope = G m1 m2/r2

8
G = 6.67 x 10-11 N m2/kg2

9
A 1000 kg car and a 2000 kg truck are 0.50 m apart. Gravitational force: 5.3 x 10-4 N

10
**Computing mass of Earth**

radius of Earth: x 106 m 1.00 kg mass has a weight of 9.81 N mass of Earth: 5.97 x 1024 kg

11
2F 4F

12
¼ F 4F

13
F

14
“g” gravitational field – weight per mass wtg Fg g = = mass m G M = r2 M = planet mass

15
**Effect of changing variables GM g = ----- r2**

if M doubles: if r doubles: if M & r doubles: if r becomes ½: 2g ¼ g ½ g 4g

16
**radius: 53% radius of Earth gravitational field for Mars?**

mass: 11% mass of Earth radius: 53% radius of Earth gravitational field for Mars? 0.39 gE = N/kg

17
**Net gravitational force on bottom mass?**

√3 GM2/s2

18
**G m1 m2 Fg = ---------- = weight r2**

What would happen to your weight if: Earth had twice mass but the same radius: Twice weight Earth had twice radius but same mass: ¼ weight

19
**What is “g” at top of Mt. Everest**

(8848 m elevation)? 9.77 N/kg = 9.77 m/s2

Similar presentations

OK

What is the centripetal force acting on a 2000 kilogram airplane if it turns with a radius of 1000 meters while moving at 300 meters per second? a c =

What is the centripetal force acting on a 2000 kilogram airplane if it turns with a radius of 1000 meters while moving at 300 meters per second? a c =

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on eia report format Ppt on event driven programming advantages Ppt on asian continent countries Ppt on employee motivation Ppt on power system stability equal area Ppt on solar energy conservation Ppt on economy of bangladesh Ppt on supply chain management of nokia cell Ppt on peak load pricing model Ppt on power line communication modem