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Physics
Physics
Problem
The graph shows the variation with time
t
t
t
of the force
F
F
F
acting on an object of mass 15 000 kg. The object is at rest at
t
=
0
t = 0
t
=
0
. What is the speed of the object when
t
=
30
t = 30
t
=
30
s?
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