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qaws [65]
3 years ago
8

Can a measurement be exact

Physics
1 answer:
Ulleksa [173]3 years ago
3 0

Can a measurement be exact? No

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C is the correct answer
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a stone is projected vertically up from the top of a tower 73.5m with velocity 24.5 m/s . find the time taken by the stone to re
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The stone's altitude at time t is given by

y=73.5\,\mathrm m+\left(24.5\dfrac{\rm m}{\rm s}\right)t-\dfrac g2t^2

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0=73.5\,\mathrm m+\left(24.5\dfrac{\rm m}{\rm s}\right)t-\dfrac g2t^2\implies t=7.11\,\rm s

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Can an ordinary object, like a motorcycle, be mass-less? Yes or No
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