#acceleration #calculatingspeed #speedtimegraph

• From the distance-time graph we can find how fast a object moves, from the average speed to the speed travelled in a particular time, all of these can be represented in the distance-time graph

• Speed = Gradient Of Graph - Time Graph

Object's Motion

• As you can see in the first hour the car was pretty slow, after that it increased the speed of 70 km/h within half-hour or an hour, Slow and steady at first, had a rise in speed, at last moved at a constant speed

Deriving Speed

• As you can already see that its marked a triangle over the graph, we need to the gradient of graph and subtract it by the time graph

• Calculation : gradient = 80 km / 1h

= 80 km/h

Calculating Acceleration

• A acceleration of a object can only be calculated if the change in velocity and the total time is mentioned

• Acceleration talks about the change in velocity by the total time

• Acceleration Formula : Change In Velocity / Total Time Taken

• A = v - u / total T

• The unit of acceleration : the unit for acceleration is always calculated in m/s²

Acceleration From Speed-Time Graph

• Acceleration = Gradient Of Graph - Time Graph

• If an object is moving at a straight line, its velocity is changing but direction isn't

• if a speed time graph is curve and not straight that means its accelerating

• If a graph is sloping downwards that means the object is decelerating