A=6_/5

-

.

a) A=F x s=500 x 200=100 000

b)vận tốc ô tô là:v=s/t=200/20=10(m/s)

Công suất là :A/t=1000000/20=5000(W)

a) W=1/2mv^2=1/2 x 2 x 10^2=100(J)

b) Tại vị trí cao nhất toàn bộ động năng chuyển thành thế năng nên thế năng bằng 100(J)

My favorite means of communication is messaging apps, like WhatsApp or Telegram. They make it really easy to stay in touch with friends and family no matter where they are. I like that you can send a quick text, share pictures, or even leave a voice message when you’re too busy to call. It’s also convenient because you can respond when you have time, rather than needing to be available immediately like with phone calls. Overall, messaging apps are fast, simple, and very flexible, which is why I prefer them.

My favorite means of communication is messaging apps, like WhatsApp or Telegram. They make it really easy to stay in touch with friends and family no matter where they are. I like that you can send a quick text, share pictures, or even leave a voice message when you’re too busy to call. It’s also convenient because you can respond when you have time, rather than needing to be available immediately like with phone calls. Overall, messaging apps are fast, simple, and very flexible, which is why I prefer them.