ama2ithSabizur ama2ithSabizur

02-04-2016
Physics

Answered

with what minimum speed must you toss a 160 g ball straight up to just touch the 13-m-high roof of the gymnasium if you release the ball 1.4 m above the ground? solve this problem using energy.

Verified Answer :

jkii007 jkii007

02-04-2016

energy at top = mgheight at top from release point
=0.169.8111.6
=18.21J
At release kinetic energy= Gravtiational energy at top
1/20.16v^2=18.21J
v^2=227.625
v=15.10m/s

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