A one kilogram toy car travelling in straight line on a rougn path at 10m/s experiences a constat breaking force of 3N.

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A one kilogram toy car travelling in straight line on a rougn
path at 10m/s experiences a constat breaking force of 3N. The
car stoped at a distance of 10 m from the initial
position where the break is applied. Is the breaking force
enough to stop the car at 10 m from the initial position.
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On a frictionless horizontal table, two blocks ( A of
mass 1 kg and B of mass 4 kg) are pressed together
against an ideal massless spring. The blocks are not attached
to the spring and are free to move free of it once they are
released from rest. The explosion is such that the two move
in the opposite direction with equal kinetic energy. Neglect
friction. What is the ratio of the speed of A and the speed
of B or VA/VB