Question

Find the distance travelled in the first 40 seconds?
(question in the attachment)

Answer 1

So thats 275m?

Answer 2

actually theres a mistake in your drawing

Answer 3

your t value of 40 is halfway between 30 and 50.
the velocity at t= 40 is halfway between v= 10 and v= 25, or (25 + 10 ) / 2 = 17.5

Answer 4

displacement = area of triangle + area of rectangle + area of trapezoid
displacement = 1/2 * 10 * 10 + (30 - 10 ) * 10 + 1/2 ( 10 + 17.5 ) * 10= 387.5

Answer 5

ohhh

Answer 6

got it!