Question

Grae Quit lock is teh T ar A 61's a block is love at 260 above Seekhed up the com er time of likes for original pokutiena tell ar a flichortest inclined the horie. In the block its at 8.5 mk fing these amount the blick to slide bach dona do it

Answer 1

h is the distance where mess will reach, after thad it slide down, Jom tu ngese Let at height ha final velocity of mass is zero ie at rest. son applying conservation of energy. 14 : 9h haya : (8.5m/s) 2x9.8 [h= 3.68m k max height Now time taken to reach height his haut - g +² 3.6 8** (8.59)+-(4.9mysu )ť? 4.942 - 8.5 + + 3. 68=0 t=0.9 sec Now time taken by mass to come its original 1. position from height his h = £gt² 2 243.68m = 0.86 sec V 9.82752 Herce, total time taken is T Toto+t2 = (0.9 +0.86) = 1.76 sec There are other ways also to solve the problem But only time is required. So this method is - easy.