Download presentation

Presentation is loading. Please wait.

3
Acceleration is the rate of change In velocity

4
vivi aMotion ++Speeding up -- +-Slowing down -+ + or -0Constant 0- Or +Speeding up from rest 00Remaining at rest Velocity and Acceleration

5
a = ΔvΔtΔvΔt = v f – v i t f – t i Average acceleration is the Change in velocity during some Measurable time interval. The SI unit for acceleration is m/s 2

6
A sprinter begins a race at 0.0 m/s And finished at 4.0 m/s. He does This in a time of 8s. What is his acceleration? 0.5 m/s 2

7
Instantaneous acceleration is The change in velocity at An instant of time. A velocity-time graph is a graph That show velocity on the X-axis and time on the y-axis.

8
The slope of a V-T graph will Give you acceleration.

11
There are a bunch of new formulas That can be found by deriving Them from the two basic formulas That we already know.

12
Displacement with Constant Acceleration Δd = ½ (v i + v f )Δt

13
A racing car reaches a speed of 42 m/s. It then begins a uniform Negative acceleration, using its Parachute and brakes, and comes To a stop 5.5s later. Find how far The car moves while stopping. 120 m

14
Velocity with Constant Acceleration v f = v i + aΔt Displacement with Constant Acceleration Δd = v i Δt + ½a(Δt) 2

15
A plane starting at rest at one end Of a runway undergoes a constant Acceleration of 4.8 m/s 2 for 15s Before takeoff. What is its speed at Takeoff? How long must the Runway be for the plane to Take off? 72 m/s540 m

16
Final Velocity after Any displacement v f 2 = v i 2 + 2aΔd

17
A babysitter pushing a stroller Starts from rest and accelerates At 0.500 m/s 2. What is the Velocity of the stroller after it Has traveled 4.75 m? 2.18 m/s

18
Form to use when accelerating object has initial velocity. Form to use when accelerating object starts from rest. Δd = ½ (v i +v f )ΔtΔd = ½(v f )Δt v f = v i + aΔtv f = a(Δt) Δd = v i Δt + ½a(Δt) 2 Δd = ½a(Δt) 2 v f 2 = v i 2 + 2aΔdv f 2 = 2aΔd Equations for constantly Accelerated straight line motion

20
Free fall is the motion of an Object falling with a Constant Acceleration due To gravity.

21
All free falling bodies undergo A uniform acceleration Of 9.81 m/s 2. This acceleration, a, is given The new symbol, g.

22
A construction worker accidentally Drops a brick from a high scaffold. What is the velocity of the brick After 4 seconds? How far does the Brick fall during this time? 39 m/s 78 m

Similar presentations

OK

Chapter 3 Review Acceleration and Free Fall 1.When an object undergoes a change in velocity, it is said to be ______________. ans: accelerating/decelerating.

Chapter 3 Review Acceleration and Free Fall 1.When an object undergoes a change in velocity, it is said to be ______________. ans: accelerating/decelerating.

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on javascript events handling Ppt on bluetooth communication headsets Ppt on power system harmonics analysis Ppt on tunnel diode construction Ppt on chapter 3 atoms and molecules for kids Ppt on immunization schedule in india Ppt on articles of association hong Ppt on foundation of education Ppt on microsoft excel 2010 Ppt on pricing policy samples