Question

7) A ball is dropped from a building of
height 50m Find the time taken to fall
through this height
0) 9.2 sec 6) 6.2 sec ) 31 sec Daisser
sec​

Answer 1

Answer:

3.16 seconds

Explanation:

$s = 1/2 at^{2}$

50 = 1/2 * 10 * t*t

t = 3.16

Answer 2

Answer:6.2 sec

v^2=u^2+2gh   (u=0, since it is dropping)

v=(100)^1/2=10(10)^1/2

t=2u/g=2*10*(10)^/2/g=6.2 sec

Explanation: