The diagram below represents a box is sliding along a
frictionless floor in the direction shown, when a force of 20 N acts
on the box to the right.
Which of the following choices, best represents the
path of the block after the hand starts pushing?
a.
b.
c.
d.
C is the correct choice. Since the initial
velocity of the block is pointing up, and the acceleration of the
block is to the right, the block is initially heading up (so a and b
cannot be correct), and the horizontal component will begin to
increase. As time goes by the horizontal component of the velocity
will grow larger and larger, while the vertical component will remain
at its initial value (so d cannot be correct).
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b.
c.
d.
