A-LevelPhysicsKinematics9702/12 · Feb/Mar 2022 · Q61 Mark
A sprinter takes a time of 11.0s to run a 100m race. She first accelerates uniformly from rest, reaching a speed of 10ms⁻¹. She then runs at a constant speed of 10 ms⁻¹ until the finish line. What is the uniform acceleration of the sprinter for the first part of the race?
A0.5 ms⁻²
B0.91 ms⁻²
C1.7 ms⁻²
D5.0 ms⁻²
✓ Correct answer
D: 5.0 ms⁻²
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