मराठी
तामिळनाडू बोर्ड ऑफ सेकेंडरी एज्युकेशनएस.एस.एल.सी. (इंग्रजी माध्यम) इयत्ता ९

Which one of the following is most likely not a case of uniform circular motion?

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प्रश्न

Which one of the following is most likely not a case of uniform circular motion?

पर्याय

  • Motion of the Earth around the Sun.

  • Motion of a toy train on a circular track.

  • Motion of a racing car on a circular track.

  • Motion of hours’ hand on the dial of the clock.

MCQ
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उत्तर

Motion of the Earth around the Sun.

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पाठ 2: Motion - Exercise [पृष्ठ २३]

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सामाचीर कलवी Science [English] Class 9 TN Board
पाठ 2 Motion
Exercise | Q I. 2. | पृष्ठ २३

संबंधित प्रश्‍न

Read the statement below carefully and state, with reason, if it is true or false:

The acceleration vector of a particle in uniform circular motion averaged over one cycle is a null vector.


Give an example of motion in which speed remains uniform, but the velocity changes.


Differentiate between uniform linear motion and uniform circular motion.


A uniform linear motion is unaccelerated, while a uniform circular motion is an accelerated motion.


Solve the following problem.

A projectile is thrown at an angle of 30° to the horizontal. What should be the range of initial velocity (u) so that its range will be between 40m and 50 m? Assume g = 10 m s-2.


Certain neutron stars are believed to be rotating at about 1 rev/s. If such a star has a radius of 1.6 km, the acceleration of an object on the equator of the star will be nearly ____________.


Earth also moves in circular orbit around sun once every year with on orbital radius of 1.5 × 1011 m. What is the acceleration of earth (or any object on the surface of the earth) towards the centre of the sun? How does this acceleration compare with g = 9.8 m/s2?


A rod PQ of mass M and length L is hinged at end P. The rod is kept horizontal by a massless string tied to point Q as shown in figure. When string is cut, the initial angular acceleration of the rod is ______.


The acceleration of a point on the rim of a flywheel 1 m in diameter, if it makes 1200 rpm is ______.


What is the direction of the velocity of an object at any point during uniform circular motion?


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