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Basic concepts of rotational motion, moment of a force, torque, angular momentum, conservation of angular momentum and its applications Mock Test for JEE

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Part of Rotational Motion in JEE Main Physics.

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Q1PhysicsUnit 5: Rotational Motion
Which of the following laws are conserved, if the areal acceleration is zero
Q2PhysicsUnit 5: Rotational Motion
Calculate total moment of the two forces about O\boldsymbol{O}
Q3PhysicsUnit 5: Rotational Motion
When there is no external torque acting on a body moving in an elliptical path, which of the following quantities remains constant?
Q4PhysicsUnit 5: Rotational Motion
A solid sphere is rotating in free space. If the radius of the sphere is increased keeping the mass same without applying any external force, which one of the following will not be affected?
Q5PhysicsUnit 5: Rotational Motion
If the earth shrinks to half of its radius without changing its mass, the duration of the day will be
Q6PhysicsUnit 5: Rotational Motion
A sphere rolls without sliding on a rough inclined plane (only mg and contact forces are acting on the body). The angular momentum, of the body:
Q7PhysicsUnit 5: Rotational Motion
A swimmer while jumping into water from a height easily forms a loop in air, if
Q8PhysicsUnit 5: Rotational Motion
Moment of inertia of a body about an axis is 4kgm2.4 k g m^{2} . The body is initially at rest and a torque of 8 N mm starts acting on it along the same axis. Work done by the torque in 20s,20 s, in joules, is :
Q9PhysicsUnit 5: Rotational Motion
Which of the following statements can be suitable?
Q10PhysicsUnit 5: Rotational Motion
A chain couples and rotates two wheels in a bicycle. The radii of bigger and smaller wheels are 0.5m0.5 m and 0.1m0.1 m respectively. The bigger wheel rotates at the rate of 200 rotations per minute, then the rate of rotation of smaller wheel will be:
Q11PhysicsUnit 5: Rotational Motion
Given solid sphere is in pure rolling on a rough surface. Pick correct statement(s): (Take π=227)\left.\pi=\frac{22}{7}\right) This question has multiple correct options
Q12PhysicsUnit 5: Rotational Motion
A nut is opened by a wrench of length 10cm.10 \mathrm{cm} . If the least force required is 5.0N,5.0 N, find the moment of force needed to turn the nut.
Q13PhysicsUnit 5: Rotational Motion
The dimensions of torque are same as that of
Q14PhysicsUnit 5: Rotational Motion
A uniform rod is resting freely over a smooth horizontal plane. A particle moving horizontally strikes at one end of the rod normally and gets stuck. Then This question has multiple correct options
Q15PhysicsUnit 5: Rotational Motion
The angular momentum of particle of mass 0.01Kg0.01 K g and position vector r⃗=\vec{r}= (10i^+6j^)(10 \hat{i}+6 \hat{j}) meter and moving with a velocity 5 ìmetre/ sec about the origin will be :

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