Download presentation

Presentation is loading. Please wait.

Published byEssence Viney Modified over 2 years ago

1
Area under a velocity-time graph Car travelling at 70 mph for 2 hours Area = This is the distance travelled, 140 miles 2 70 = 140 v mph t hours 0 2 70 The area under a velocity-time graph gives the distance travelled (displacement)

2
Car accelerating steadily from 0 to 20 ms -1 in 5 seconds Distance travelled = 50 metres = 50 m Acceleration = = 4 ms -2 v ms -1 t seconds 0 5 20 Area of triangle Gradient of a velocity-time graph This is 4 ms -1 per second The gradient of a velocity-time graph gives the acceleration.

3
Summary The area under a velocity-time graph gives the displacement The gradient of a velocity-time graph gives the acceleration Area of a triangle Area of a trapezium b h b h a

4
Object with velocity increasing steadily from u to v in time t Acceleration a Velocity Time 0 t u v Equation 1 Displacement s Equation 2

5
Equation 1 Equation 2 Substituting for v : Equation 3

6
Equation 1 Equation 2 Rearranging for t : Equation 4 Substituting for t :

7
Equation 1 Equation 2 Equation 3 Equation 4 Constant Acceleration Equations where u = initial velocity v = final velocity a = acceleration t = time taken s = displacement

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 eisenmenger syndrome definition Inspirational ppt on positive attitude free download Ppt on natural disaster flood Ppt on environmental pollution in hindi Download ppt on indus valley civilization for kids Animated ppt on magnetism experiments Training ppt on quality Download ppt on bluetooth hotspot Ppt on regular expression tester Ppt on median and altitude of a triangle