Q5. Two particles, A and B, are connected by a light inextensible string which passes through a hole in a smooth horizontal table. The edges of the hole are also smooth. Particle A, of mass 1.4 kg, moves on the table, with constant speed in a circle of radius 0.3 m around the hole. Particle B, of mass 2.1 kg, hangs in equilibrium under the table, as shown in the diagram. (a) Find the angular speed of particle A. (4) (b) Find the speed of particle A. (2) (c) Find the time taken for particle A to complete one full circle around the hole. ←0.3m->> B
Q5. Two particles, A and B, are connected by a light inextensible string which passes through a hole in a smooth horizontal table. The edges of the hole are also smooth. Particle A, of mass 1.4 kg, moves on the table, with constant speed in a circle of radius 0.3 m around the hole. Particle B, of mass 2.1 kg, hangs in equilibrium under the table, as shown in the diagram. (a) Find the angular speed of particle A. (4) (b) Find the speed of particle A. (2) (c) Find the time taken for particle A to complete one full circle around the hole. ←0.3m->> B
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Transcribed Image Text:Q5.
Two particles, A and B, are connected by a light
inextensible string which passes through a hole in a
smooth horizontal table. The edges of the hole are also
smooth. Particle A, of mass 1.4 kg, moves on the table,
with constant speed in a circle of radius 0.3 m around the
hole. Particle B, of mass 2.1 kg, hangs in equilibrium
under the table, as shown in the diagram.
(a) Find the angular speed of particle A.
(4)
(b)
Find the speed of particle A.
(2)
(c)
Find the time taken for particle A to complete one full circle around the hole.
←0.3m->>
B
A
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