Question

2. An aeroplane flying 490 m above ground level
at 100 m/s, releases a block. How far on
ground will it strike
1. 0.1 km
2. 1 km
3. 2 km
4. None​

Answer 1

Answer: 1  km

Step-by-step explanation:

1/2 gt^2 = 49  ==> so. t = 10 sec

now distance = v*t = 100*10 = 1000m = 1km