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
242,036 views
17 votes
17 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 Qubix
by
2.2k points

1 Answer

8 votes
8 votes

Answer:

t=2s

Step-by-step explanation:

User Gauls
by
3.4k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers

Other Questions

Determjne the density of liquid whose relative density is 1.25 given that the density is 1000kgm-3​
How can I solve the following? In (Figure 1), let V = 15.0 V and C1=C2=C3= 24.2 μF. Part A: How much energy is stored in the capacitor network as shown in (Figure 1)? Part B: How much energy would be stored
1. if i start with 48 ml of water in a graduated cylinder, after submerging an object the water level rises to 63 ml, what is the volume of the object. 2. if i start with 36 ml of water in a graduated
a dog is running around chasing his tail using a force of 30N. The dog has a mass of 5 kg. what is the dogs acceleration?
Why, when building a house, all its walls are laid at the same height at the same time?​
Link Copied!