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Physics
Physics
Problem
A trolley of mass
50
kg
50\,\text{kg}
50
kg
is pushed so that its velocity increases from
1.5
m/s
1.5\,\text{m/s}
1.5
m/s
to
4.5
m/s
4.5\,\text{m/s}
4.5
m/s
. If the net horizontal force on the trolley is
75
N
75\,\text{N}
75
N
, determine the time for which the force acts.
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