Question

Ball is thrown vertically upward with speed of 10 m/s. Calculate the speed of ball after 1 second

Answer 1

given,
v=10m/s
t=1s
u=0
a=v-u/t
a=10ms^2

Answer 2

U=10

V=U+at

a=-g=-9.8

t=1

V=10+(-9.8)1

V=10-9.8

V=0.2m/s