1
JEE Main 2021 (Online) 1st September Evening Shift
+4
-1
A block of mass m slides on the wooden wedge, which in turn slides backward on the horizontal surface. The acceleration of the block with respect to the wedge is : Given m = 8 kg, M = 16 kg Assume all the surfaces shown in the figure to be frictionless.

A
$${4 \over 3}g$$
B
$${6 \over 5}g$$
C
$${3 \over 5}g$$
D
$${2 \over 3}g$$
2
JEE Main 2021 (Online) 1st September Evening Shift
+4
-1
An object of mass 'm' is being moved with a constant velocity under the action of an applied force of 2N along a frictionless surface with following surface profile.

The correct applied force vs distance graph will be :
A
B
C
D
3
JEE Main 2021 (Online) 31st August Evening Shift
+4
-1
Statement : 1

If three forces $${\overrightarrow F _1},{\overrightarrow F _2}$$ and $${\overrightarrow F _3}$$ are represented by three sides of a triangle and $${\overrightarrow F _1} + {\overrightarrow F _2} = - {\overrightarrow F _3}$$, then these three forces are concurrent forces and satisfy the condition for equilibrium.

Statement : 2

A triangle made up of three forces $${\overrightarrow F _1}$$, $${\overrightarrow F _2}$$ and $${\overrightarrow F _3}$$ as its sides taken in the same order, satisfy the condition for translatory equilibrium.

In the light of the above statements, choose the most appropriate answer from the options given below :
A
Statement - I is false but Statement - II is true
B
Statement - I is true but Statement - II is false
C
Both Statement-I and Statement-II are false
D
Both Statement-I and Statement-II are true
4
JEE Main 2021 (Online) 27th August Evening Shift
+4
-1
The boxes of masse 2 kg and 8 kg are connected by a massless string passing over smooth pulleys. Calculate the time taken by box of mass 8 kg to strike the ground starting from rest. (use g = 10 m/s2)

A
0.34 s
B
0.2 s
C
0.25 s
D
0.4 s
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