[متفائله]

السلام عليكم..........
في بعض التمارين لم أتمكن من حلها فأتمنى إنكم تحلونه

A body weight 0.2 kg was thrown up word when inertia violisty of up 80 m/s find its Kinetic energy and potential energy
at beginning of lunching -
when the body reach maximum height-
when the body is 2m above the ground-

Abody rotates around fixed axis with constant angular volisty if F=5x10-3kg.m and angular violisty (w)=4 rad/sec
Find it kinetic energy--