1.

A ball is thrown from the top of a `60m` high tower with velocity `20sqrt(2)m//s` at `45^(@)` elevation of path at highest point. (`g=10m//s^(2)`) A. `10m`B. `20m`C. `40m`D. `200m`

Answer» Correct Answer - C
`R=(v^(2))/(a_(c))=((ucos45^(@)))/(g)=((20)^(2))/(10)=40m`


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