As shown in Figure P8.46, a light string that does not stretch changes from hori

Question

As shown in
Figure P8.46, a light string
that does not stretch changes
from horizontal to vertical
as it passes over the edge of
a table. The string connects
m1, a 3.50-kg block originally
at rest on the horizontal table
at a height h = 1.20 m above
the floor, to m2, a hanging
1.90-kg block originally a
distance d = 0.900 m above the floor. Neither the surface of
the table nor its edge exerts a force of kinetic friction. The
blocks start to move from rest. The sliding block m1 is projected
horizontally after reaching the edge of the table. The
hanging block m2 stops without bouncing when it strikes the
floor. Consider the two blocks plus the Earth as the system.
(a) Find the speed at which m1 leaves the edge of the table.
(b) Find the impact speed of m1 on the floor. (c) What is
the shortest length of the string so that it does not go taut
while m1 is in flight? (d) Is the energy of the system when it
is released from rest equal to the energy of the system just
before m1 strikes the ground? (e) Why or why not?

Explanation / Answer

fig plz

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.