NEET 2022 Phase 1 | Center of Mass and Collision Question 9 | Physics

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 :

$${{10} \over 3}$$ m

$${{20} \over 3}$$ m

10 m

5 m

NEET 2021

MCQ (Single Correct Answer)

-1

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 :

1.4 kg m/s

0 kg m/s

4.2 kg m/s

2.1 kg m/s

NEET 2020 Phase 1

MCQ (Single Correct Answer)

-1

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 :

50 cm

67 cm

80 cm

33 cm

NEET 2019

MCQ (Single Correct Answer)

-1

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 :

$${5 \over 9}$$

$${4 \over 9}$$

$${8 \over 9}$$

$${1 \over 9}$$

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Biology

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Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution