Kinematics [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 209 - 212 of 475
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Question 209
Question MCQ▾
In the above example, the height ascended or descended, as the case may be, during that time i.e.. 8 sec will be -
Choices
Choice (4) | Response | |
---|---|---|
a. | 6.976 m | |
b. | 17.44 m | |
c. | 1.744 m | |
d. | Question does not provide sufficient data or is vague |
Question 210
Question MCQ▾
A bullet of mass 0.01 kg travelling at a speed of 300 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. | 110 m/s | |
b. | 1.4 m/s | |
c. | 20 m/s | |
d. | 220 m/s |
Question 211
Question MCQ▾
A bullet of mass 20 g hits a block of mass 1.98 kg suspended from a massless string of length 100 cm and sticks to it. The bullet flies down at an angle of 30° to the horizontal with a velocity of 200 m/s. Through what height the block will rise-
Choices
Choice (4) | Response | |
---|---|---|
a. | 0.45 m | |
b. | 0.30 m | |
c. | 0.75 m | |
d. | 0.15 m |
Question 212
Question MCQ▾
The rate of burning of fuel in a rocket is 60 . and comes out with and velocity . The force exerted by gas on rocket will be –
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | 300 N | |
c. | ||
d. | 200 N |