Register
Một vật nặng rơi từ độ cao 20m xuống đất. Tính thời gian rơi và vận tốc của vật khi chạm đất. Lấy g = 10 m/s²
110k views
2 votes
Một vật nặng rơi từ độ cao 20m xuống đất. Tính thời gian rơi và vận tốc của vật khi chạm đất. Lấy g = 10 m/s²

User Tounano
by
5.0k points

1 Answer

3 votes

Answer:

t=2s

Step-by-step explanation:

User Pankaj Bansal
by
5.3k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.8m questions

7.5m answers

Other Questions

How does the capacitance of a parallel plate capacitor change with the geometry of the capacitor?
Indy runs 2 kilometers every morning. She takes 2 minutes for the first 250 meters, 4 minutes for the next 1,000 meters, 1 minute for the next 350 meters, and 3 minutes for the rest. Cindy’s average speed
A space station that does not rotate cannot simulate gravity for its occupants. A)True B)False From within a rotating reference frame, the centrifugal force simulates gravity. A)True B)False On a rotating
Explain why the roller coaster’s potential energy is greater at point 1 than at point 4.
the force is found by multiplying the mass of an object by velocity at which it travels. true or false
Link Copied!