1
JEE Main 2021 (Online) 31st August Morning Shift
Numerical
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A car is moving on a plane inclined at 30$$^\circ$$ to the horizontal with an acceleration of 10 ms$$-$$2 parallel to the plane upward. A bob is suspended by a string from the roof of the car. The angle in degrees which the string makes with the vertical is ______________. (Take g = 10 ms$$-$$2)
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2
JEE Main 2021 (Online) 26th August Evening Shift
Numerical
+4
-1
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The coefficient of static friction between two blocks is 0.5 and the table is smooth. The maximum horizontal force that can be applied to move the blocks together is .................. N. (take g = 10 ms-2)

JEE Main 2021 (Online) 26th August Evening Shift Physics - Laws of Motion Question 60 English
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3
JEE Main 2021 (Online) 20th July Evening Shift
Numerical
+4
-1
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A body of mass 'm' is launched up on a rough inclined plane making an angle of 30$$^\circ$$ with the horizontal. The coefficient of friction between the body and plane is $${{\sqrt x } \over 5}$$ if the time of ascent is half of the time of descent. The value of x is __________.
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4
JEE Main 2021 (Online) 18th March Morning Shift
Numerical
+4
-1
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A bullet of mass 0.1 kg is fired on a wooden block to pierce through it, but it stops after moving a distance of 50 cm into it. If the velocity of bullet before hitting the wood is 10 m/s and it slows down with uniform deceleration, then the magnitude of effective retarding force on the bullet is 'x' N. The value of 'x' to the nearest integer is __________.
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