Deceleration and Distance Analysis Using Speed Time Graphs

The video tutorial explains how to solve a speed-time graph exam question. It covers calculating the deceleration of a car in the first 20 seconds by finding the gradient of a line using the rise over run method. The tutorial also demonstrates how to calculate the total distance traveled by finding the area under the graph, dividing it into a triangle and a rectangle. The final answers for deceleration and distance are provided, with units explained.

What is the first task in the speed time graph exam question?

• Find the maximum speed

• Determine the deceleration of the car

• Identify the time taken

• Calculate the total distance

Which method is used to calculate the gradient of the line?

• Slope-intercept form

• Point-slope form

• Rise over run

• Quadratic formula

What is the gradient of the line between the points (0,16) and (20,10)?

• 0.3

• -3

• 3

• -0.3

How is deceleration different from acceleration in terms of sign?

• Deceleration is negative, acceleration is positive

• Deceleration is positive, acceleration is negative

• Both are always negative

• Both are always positive

What is the first step in calculating the total distance from the graph?

• Determine the time taken

• Identify the maximum speed

• Find the speed at the end

• Calculate the area under the graph

Which shapes are used to calculate the area under the graph?

• Triangle and rectangle

• Square and triangle

• Trapezoid and circle

• Circle and square

What is the base length of the triangle used in the area calculation?

• 10

• 16

• 70

• 20

What is the height of the rectangle used in the area calculation?

• 20

• 16

• 10

• 6

What is the total distance covered according to the graph?

• 700 meters

• 760 meters

• 600 meters

• 670 meters