1

JEE Main 2021 (Online) 27th August Morning Shift

Numerical

+4

-1

Two persons A and B perform same amount of work in moving a body through a certain distance d with application of forces acting at angle 45$$^\circ$$ and 60$$^\circ$$ with the direction of displacement respectively. The ratio of force applied by person A to the force applied by person B is $${1 \over {\sqrt x }}$$. The value of x is .................... .

Your input ____

2

JEE Main 2021 (Online) 26th August Morning Shift

Numerical

+4

-1

A uniform chain of length 3 meter and mass 3 kg overhangs a smooth table with 2 meter lying on the table. If k is the kinetic energy of the chain in joule as it completely slips off the table, then the value of k is ................. . (Take g = 10 m/s

^{2})Your input ____

3

JEE Main 2021 (Online) 27th July Evening Shift

Numerical

+4

-1

A small block slides down from the top of hemisphere of radius R = 3 m as shown in the figure. The height 'h' at which the block will lose contact with the surface of the sphere is __________ m.

(Assume there is no friction between the block and the hemisphere)

(Assume there is no friction between the block and the hemisphere)

Your input ____

4

JEE Main 2021 (Online) 25th July Evening Shift

Numerical

+4

-1

A force of F = (5y + 20)$$\widehat j$$ N acts on a particle. The work done by this force when the particle is moved from y = 0 m to y = 10 m is ___________ J.

Your input ____

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