1
JEE Main 2021 (Online) 20th July Morning Shift
Numerical
+4
-1
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A circular disc reaches from top to bottom of an inclined plane of length 'L'. When it slips down the plane, it makes time 't1'. When it rolls down the plane, it takes time t2. The value of $${{{t_2}} \over {{t_1}}}$$ is $$\sqrt {{3 \over x}} $$. The value of x will be _______________.
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2
JEE Main 2021 (Online) 17th March Morning Shift
Numerical
+4
-1
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The angular speed of truck wheel is increased from 900 rpm to 2460 rpm in 26 seconds. The number of revolutions by the truck engine during this time is _____________. (Assuming the acceleration to be uniform).
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3
JEE Main 2021 (Online) 17th March Morning Shift
Numerical
+4
-1
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The following bodies,

(1) a ring

(2) a disc

(3) a solid cylinder

(4) a solid sphere,

of same mass 'm' and radius 'R' are allowed to roll down without slipping simultaneously from the top of the inclined plane. The body which will reach first at the bottom of the inclined plane is ___________. [Mark the body as per their respective numbering given in the question]

JEE Main 2021 (Online) 17th March Morning Shift Physics - Rotational Motion Question 93 English
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4
JEE Main 2021 (Online) 16th March Evening Shift
Numerical
+4
-1
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A solid disc of radius 'a' and mass 'm' rolls down without slipping on an inclined plane making an angle $$\theta$$ with the horizontal. The acceleration of the disc will be $${2 \over b}$$g sin$$\theta$$ where b is ____________. (Round off to the Nearest Integer) (g = acceleration due to gravity, $$\theta$$ = angle as shown in figure)

JEE Main 2021 (Online) 16th March Evening Shift Physics - Rotational Motion Question 97 English
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