Question

From the top of cliff of height 19.6 a ball is projected horizontally find the time taken by the ball to reach the ground​

Answer 1

Answer:

2sec

Explanation:

s=ut+1/2gt×t

19.6 =0×t+1/2×9.8t×t

19.6=0+4.9t×t

19.6/4.9=t×t

t=2sec