1.

A grass hopper can jump maximum distance of 1.6m It spends negligible time on the ground. How far can it go in 10 seconds?

Answer»

SOLUTION :`(U^(2))/(G)=1.6u^(2)=16rArru=`4m/s
`4costheta=4xx(1)/(sqrt(2))=2sqrt(2)//s`
`S=4costheta.t = 2sqrt(2)xx10""S=20sqrt(2)m`


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