Kinematics (NEET Physics): Questions 6  9 of 233
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2142 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 550.00 or
Question number: 6
» Kinematics » Motion in a Straight Line
Question
A point moves with uniform acceleration and V _{1}, v _{2} and v _{3 } denote the average velocities in the three successive intervals of time t _{1}, t _{2} and t _{3}. Which of the following relations is correct?
Choices
Choice (4)  Response  

a.  (V _{1} – V _{2}) / (V _{2} – V _{3}) = (t _{1} + t _{2}) / (t _{2} + t _{3}) 

b.  (V _{1} – V _{2}) / (V _{2} – V _{3}) = (t _{1} – t _{2}) / (t _{2} + t _{3}) 

c.  (V _{1} – V _{2}) / (V _{2} – V _{3}) = (t _{1} – t _{2}) / (t _{2}  t _{3}) 

d.  None of the above 

Question number: 7
» Kinematics » Motion in a Straight Line
Question
What will be the ratio of the distances moved by a freely falling body from rest in 7^{th} and 9^{th} seconds of journey?
Choices
Choice (4)  Response  

a.  13: 17 

b.  4: 5 

c.  7: 9 

d.  16: 25 

Question number: 8
» Kinematics » Motion in a Plane
Question
from the top of a tower, a particle is thrown vertically downwards with a velocity of 10 m/s. The ratio of the distances, covered by it in the 3^{rd} and 2^{nd} seconds of the motion is (Take g = 10m/s2)
Choices
Choice (4)  Response  

a.  3: 6 

b.  6: 3 

c.  5: 7 

d.  7: 5 

Question number: 9
» Kinematics » Average Speed and Instantaneous Velocity
Assertion (Ꭺ)
The velocity of a body A relative to the body B is the sum of the velocities of bodies A and B if both travel in opposite direction on a straight line.
Reason (Ꭱ)
The velocity of a body A relative to the body B is the difference of the velocities of bodies A and B if both travel in opposite direction on a straight line.
Choices
Choice (4)  Response  

a.  Ꭺ is true but Ꭱ is false 

b.  Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ 

c.  Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ 

d.  Ꭺ is false but Ꭱ is true 
