Question text
17 A bead is released from rest at point P and slides along a wire, as shown. P not to scale 1.4 m s–1 Q h 40 cm The wire loops around and forms a vertical circle of diameter 40 cm. At point Q, the bead has a speed of 1.4 m s–1. Air resistance and friction on the wire are negligible. What is the height h from which the bead is released? A 0.30 m B 0.40 m C 0.50 m D 0.60 m
17 A bead is released from rest at point P and slides along a wire, as shown.
P
not to
scale
1.4 m s–1 Q
h
40 cm
The wire loops around and forms a vertical circle of diameter 40 cm. At point Q, the bead has a
speed of 1.4 m s–1.
Air resistance and friction on the wire are negligible.
What is the height h from which the bead is released?
A 0.30 m B 0.40 m C 0.50 m D 0.60 m
Select your answer: