Question

a stone is dropped from the top of the tower its velocity after it has fallen 20 metre is​

Answer 1

Answer: It will be 20 m/s

Explanation: u= 0

S= 20 m

a=g= 10m/s

From equation of motion

V^2 = u^2 +2as

V= ✓u^2+2as

V= ✓ 0+2×10×10

V= ✓400 m/s

V= 20 m/s . Answer

Answer 2

Answer:

20 m/s

Explanation: