8.78 ...A small wooden block with m

8.78 ...A small wooden block with mass 0.800 kg is suspended from the lower end of a light cord that is 1.60 m long. The block is initially at rest. A bullet with mass 12.0 g is fired at the block with a horizontal velocity v0. The bullet strikes the block and becomes embedded in it. After the collision the combined object swings on the end of the cord. When the block has risen a vertical height of 0.800 m, the tension in the cord is 4.80 N. What was the initial speed v0 of the bullet?

Kết quả (Klingon) 1:

8.78. suspended mach wooden puS MaQa' kg 0.800 vo' ghuS pItlh chep cord ghaH tIq, qaStaHvIS 1.60 m. bot initially DeSDu' leS. bullet je 12.0 g MaQa' fired DeSDu' bot SaS Do v0. bot mup 'ej moj embedded Homvetlh bullet. qaSpu'DI' collision Qach QamchoHmo' jIblIj Hoch tlhegh object cord 'er'In. HeghDI' chong 'ab 0.800 m Hu'DI' loD bot, cord tension 4.80 n nuq 'oH pImchugh chuqmey poHmey speed v0 bullet?