A cyclist is riding his bike up a mountain trail. When he starts up the trail, he is going 8 m/s. As the trail gets steeper, he slows to 3 m/s in 1 minute. What is the cyclist’s acceleration?

Acceleration is the change in velocity divided by the time taken. Convert 1 minute to 60 seconds, then calculate (3 m/s − 8 m/s) ÷ 60 s = −5/60 ≈ −0.08 m/s². The negative sign indicates the cyclist is slowing down, so the answer is –0.08 m/s².

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