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 -
Choices
Choice (4) | Response | |
---|---|---|
a. | 1.744 m/s | |
b. | 0.872 m/s | |
c. | 2.18 m/s | |
d. | 0.218 m/s |
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 |
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 |
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 |