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How would I sketch this velocity-time graph?

Question: Sam is driving at a steady speed of 10 m/s in a straight line, when he sees a red traffic light 50 m away and, putting on the brakes, comes to rest at the light.
He stops for 30 seconds and then resumes his journey, attaining his original speed of 10 m/s in a distance of 75 m.
Assuming that the acceleration and deceleration are uniform, sketch the velocity-time graph including the areas before and after putting on the brakes.

There's 2 ways I can draw this:
(1) https://prnt.sc/qhyl1i
(2) https://prnt.sc/qhyl8c
Which is correct?
Original post by TSR360
Question: Sam is driving at a steady speed of 10 m/s in a straight line, when he sees a red traffic light 50 m away and, putting on the brakes, comes to rest at the light.
He stops for 30 seconds and then resumes his journey, attaining his original speed of 10 m/s in a distance of 75 m.
Assuming that the acceleration and deceleration are uniform, sketch the velocity-time graph including the areas before and after putting on the brakes.

There's 2 ways I can draw this:
(1) https://prnt.sc/qhyl1i
(2) https://prnt.sc/qhyl8c
Which is correct?


I pretty sure they are both incorrect. Can anyone confirm?
Reply 2
Original post by TSR360
Question: Sam is driving at a steady speed of 10 m/s in a straight line, when he sees a red traffic light 50 m away and, putting on the brakes, comes to rest at the light.
He stops for 30 seconds and then resumes his journey, attaining his original speed of 10 m/s in a distance of 75 m.
Assuming that the acceleration and deceleration are uniform, sketch the velocity-time graph including the areas before and after putting on the brakes.

There's 2 ways I can draw this:
(1) https://prnt.sc/qhyl1i
(2) https://prnt.sc/qhyl8c
Which is correct?

Both are incorrect. When he stops v = 0 m/s
They are both incorrect this is how it should look.

P.s the area under the graph is your distance but, i left school years ago and can't remember them suvat equations but I'm sure you know them

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