The light will change its direction and bend away from the normal.
Answer:
90 m
Explanation:
Acceleration,
where v and u are final and initial velocities respectively, t is the time taken
Substituting
for a, 4 m/s for u and 10 s for t then
1*10=v-4
v=14 m/s
From kinematic equations

Making s the subject then

Answer:
The biggest of all these was, and perhaps still is, the ongoing fascination with whether we, the United States of America, in July 1969 actually landed on the moon — where, ahem, astronaut footprints are still visible.
Explanation: