Kinematics [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 191 - 194 of 475

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Question 191

Question MCQ▾

In the fig shown, the velocity of each particle at the end of 4 sec will be -

Two Mases a and B on a Pulley System

Choices

Choice (4)Response

a.

1.744 m/s

b.

0.872 m/s

c.

2.18 m/s

d.

0.218 m/s

Edit

Question 192

Question MCQ▾

A body of mass 2 kg strikes elastically with another body at rest and continues to move in the same direction with one fourth of its initial velocity. The mass of the other body is –

Choices

Choice (4)Response

a.

4 kg

b.

2.4 kg

c.

1.2 kg

d.

0.6 kg

Edit

Question 193

Question MCQ▾

A bullet of mass 0.01 kg travelling at a speed of 200 m/s strikes a block of mass 2 kg, which is suspended by a string of length 5 m. The center of gravity of the block is found to rise a vertical distance of 0.1 m The speed of the bullet after it emerges from the block will be -

Choices

Choice (4)Response

a.

1.4 m/s

b.

220 m/s

c.

80 m/s

d.

20 m/s

Edit

Question 194

Question MCQ▾

The mass of a rocket is 600 kg and the relative velocity of the gases ejecting from it is 250 m/s with respect to the rocket. The rate of burning of the fuel in order to give the rocket an initial acceleration 20 m/s2 in the vertically upward direction (g = 10 m/s2) , will be –

Choices

Choice (4)Response

a.

72 kg/s

b.

60 kg/s

c.

30 kg/s

d.

10 kg/s

Edit