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An object is thrown vertically upwards …

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An object is thrown vertically upwards and rises to a height of 10m. calculate i)the velocity with which the object was thrown upwards and ii)the time taken by the object to reach the highest point.

Posted by Labdhi Jain 5 years, 9 months ago

CBSE > Class 09 > Science

1 answers

Namrata Jindal 5 years, 9 months ago

(i) At the highest point, v=0 v^2=u^2+2gh 0=u^2+2(-9.8)10 u^2=2*98=196 u =√196=14 (ii) v=u + at 0=14+(-9.8)t 14=-9.8t t =14/-9.8=-10/7 Since time is always positive, t=10/7=1.43

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