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Kinematics -simple

For Q30 c I used S=ut+1/2at^2 at t=1 and t=5 and took the difference.
Screenshot (16).png
This website https://www.slader.com/textbook/9780321928931-physics-principles-with-applications-7th-edition/44/problems/30/
solves it differently, which method is correct ? And if mine is wrong can someone please explain?
(edited 4 years ago)
Screenshot (15).png132.6KB
Your method is fine as long as you substitute in the right things. Their method is a little extra
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Leah.J
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Original post by Ventus25
Your method is fine as long as you substitute in the right things. Their method is a little extra

The answers are diff tho, would my answer be correct ?
It asks for the distance travelled in the first second (t=0 to t=1) and the fifth second (t=4 to t=5)
(edited 4 years ago)
Original post by Better_Than_3rd
It asks for the distance travelled in the first second (t=0 to t=1) and the fifth second (t=4 to t=5)


Yep this is correct I didn’t read the question correctly

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