Presentation is loading. Please wait.

Presentation is loading. Please wait.

QQ: What is the upward acceleration

Similar presentations


Presentation on theme: "QQ: What is the upward acceleration"— Presentation transcript:

1 QQ: What is the upward acceleration
of a helicopter with a mass of 5000 kg if a force of 10,000 N acts upon it in an upward direction? 2. An automobile with a mass of 1200 kg accelerates at a rate of 3.0 m/s2 in the forward direction. What is the net force acting on the automobile? 3. A 60.0 kg person walks from the ground to the top of a 74.8 m tall building. Calculate her potential energy.

2

3 Today’s Objective: I can describe motion using Newton’s Law’s of Motion.

4 What is the big concept Newton described in his first law of motion?

5 Hyperlink myhbusters

6 What is the big concept Newton described in his second law of motion?

7 Aldo is lucky enough to be the first astronaut from MHS
Aldo is lucky enough to be the first astronaut from MHS. On earth he has a mass of 88 kg and weighs 863 N. On the moon he weighed 141 N. The acceleration due to gravity on Mars is 3.7 m/s2. How much does he weigh on Mars?

8 And finally…. Newton’s 3rd Law of Motions

9 Newton’s Third Law of Motion
Whenever an object exerts a force on a second one, that object exerts an equal and opposite force back. Newton’s Third Law of Motion

10 When Action – Reaction forces
do not cancel This means movement can and does occur

11

12 Movement occurs in direction
of greatest vector All forces are equal  no movement

13 Net Force: (Newton’s 3rd law) Uses vector addition to predict a body’s motion Vectors are equal so no movement Unequal vectors show movement of object

14 Reaction Pairs: the opposing forces always come in pairs

15 Vector  Momentum: mass in action Amount of force it would
take to stop a moving object Vector 

16 Momentum = Mass x Velocity
p = mv p = Momentum m = mass V = velocity

17 Ivonne loves her motorcycle
Ivonne loves her motorcycle. Its mass is 325 kg and she is riding along 140 km/h, south. Find its momentum.

18 Conservation of Momentum
Law of Conservation of Momentum The total momentum of 2 objects is equal before and after a collision.

19 The total momentum of 2 objects is equal before and after a collision.

20 6600 6600 800kg * 2 m/s = 1600 kgm/s 1000kg * 5 m/s = 5000 kgm/s 800kg

21 Newton's Cradle

22 NHL Physics?

23

24 Coming up Friday!!!!!! Unit Test over: Motion and Newton’s Laws


Download ppt "QQ: What is the upward acceleration"

Similar presentations


Ads by Google