The distance covered by an object is given by s=8t2-7t2+5t find its speed at t=2s
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0
Answer:
9
Explanation:
s = 8t2-7t2+ 5t
s = 8t²-7t²+ 5t
s = t²+ 5t
v = ds/dt
v = 2t + 5
at t =2s
v = 9
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