Question

8. A body is dropped from rest and falls freely (the value of gravitational pull, g=980cm/s).
The position and speed after 1 second is:
A. 490 cm, -980 cm/sec
B. 490 cm, 980 cm/sec
C.980 m,-980 m/sec
D. 980 m, 980 m/sec​

Answer 1

Explanation:

h=1/2gt²=490

v=u+at

v=0-980

v=-980