Question

2) A particle of mass m perform vertical motion in a circle of radius rits potential
energy at the highest point is - (g is acceleration of gravity)
a) mgr b) mgr c) d) 3mgr
3) A fly wheel rotating about a fixed axis has a kinetic energy of 360J when its
angular speed is 30 rad s what is the moment of inertia ?
a) 0.4 kg m b) 0.6 kg m c) 0.8 kg m d) Ikgm
4) A wheel of mass 10kg has a moment of inertia of 160 kg m about its own axis
the radius of gyration will be a) 10 mb) 8m c) om d) 4m
0.2. Answer the following questions
(03)
i) About which axis would a perform cube have its minimum moment of inertia?
ii) State right hand thumb rule to find the direction off angular displacement?
iii) A car of mass 1500 kg round a curve of radius 250m at 90 kg/hr calculate the
centripetal force acting on it?
Section B
Attempt any four
(08)
0.3. A racing car complete 5 round of a circular track in two minutes find the
radius of the track if the car has uniform centripetal acceleration of 1 m/s.
Q.4. Distinguish between centripetal force and centripetal force.
Q.5. State the following terms a) simple pendulum B) Conical pendulam
Q.6. A flat curve on a highway has a radius of curvature 200m a car goes around a
curve at a speed of 32 m/s what is the minimum value of coefficient of friction
that will prevent the car from sliding​

Answer 1

a eacij carracing car complete 5 round of a circular track in two minutes find the

radius of the track if the car has uniform centripetal acceleration of 1 m/s.

Q.4. Distinguish between centripetal force and centripetal force.

Q.5. State the following terms a) simple pendulum B) Conical pendulam

Q.6. A flat curve on a highway has a radius of curvature 200m a car goes around a

curve at a speed of 32 m/s what is the minimum value of coefficient of friction

that will prevent the car from sliding

Answer 2

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