Question

34. One second after being thrown straight down, objects is falling with a speed of 20
m/S. How fast will it be falling 2 seconds later? (g=10 m / S)
A. 20 m/s
D. 80 m/s
B. 40 m/s
E. 90
C. 60 m/s
​

Answer 1

Answer:

40 m/s

Explanation:

data

t=2s

vi.= 20m/s

g=10m/s.s

vf=?

solution :

vf=vi+gt

vf=20+20

vf=40m/s