1
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

Two objects of mass 10 kg and 20 kg respectively are connected to the two ends of a rigid rod of length 10 m with negligible mass. The distance of the center of mass of the system from the 10 kg mass is :

A
$${{10} \over 3}$$ m
B
$${{20} \over 3}$$ m
C
10 m
D
5 m
2
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Change Language
A ball of mass 0.15 kg is dropped from a height 10m, strikes the ground and rebounds to the same height. The magnitude of impulse imparted to the ball is (g = 10 m/s2) nearly :
A
1.4 kg m/s
B
0 kg m/s
C
4.2 kg m/s
D
2.1 kg m/s
3
NEET 2020 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
Two particles of mass 5 kg and 10 kg respectively are attached to the two ends of a rigid rod of length 1 m with negligible mass.
The centre of mass of the system from the 5 kg particle is nearly at a distance of :
A
50 cm
B
67 cm
C
80 cm
D
33 cm
4
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Change Language
Body A of mass 4m moving with speed u collides with another body B of mass 2 m, at rest. The collision is head on and elastic in nature. After the collision the fraction of energy lost by the colliding body A is :
A
$${5 \over 9}$$
B
$${4 \over 9}$$
C
$${8 \over 9}$$
D
$${1 \over 9}$$
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