What can you say about the
motion of an object if its speed-
time graph is a straight line
parallel to the time axis?
What can you say about the
motion of an object whose
distance-time graph is a straight
line parallel to the time axis?
A bus decreases its speed from
80 km h–1 to 60 km h–1 in 5 s.
Find the acceleration of the bus.
During an experiment, a signal
from a spaceship reached the
ground station in five minutes.
What was the distance of the
spaceship from the ground
station? The signal travels at the
speed of light, that is, 3 × 108
m s–1
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