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The study of motion of objects, without consideration of its cause, is:
1. statics
2. kinematics
3. mechanics
4. dynamics

Subtopic:  Distance & Displacement |
 89%
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A ball released from a height falls \(5~\text m\) in one second. In \(4~\text s,\) it falls through:
(take \(g=10~\text{m/s}^2\) )
1. \(40~\text m\)
2. \(20~\text m\)
3. \(80~\text m\)
4. \(120~\text m\)
Subtopic:  Uniformly Accelerated Motion |
 75%
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A food packet is released from a helicopter rising steadily at speed of \(9.6\) m/s. After \(2\) s, speed of the packet will be:
1. \(10\) m/s 2. \(19.6\) m/s
3. \(29.2\) m/s 4. \(9.8\) m/s
Subtopic:  Uniformly Accelerated Motion |
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The relation between acceleration and time for an object is given by, \(a=2t+t^{2}.\) If the object starts from rest, then its velocity at \(t=1\) s, is: (\(a\) is in m/s2 and \(t\) is in seconds)
1. \(\dfrac{5}{3}\) m/s
2. \(\dfrac{4}{3}\) m/s
3. \(2\) m/s
4. \(3\) m/s
Subtopic:  Acceleration |
 75%
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Which of the following statements is true about the motion depicted in the diagram? 
              
1. The acceleration is constant and non-zero.
2. The velocity changes suddenly during the motion.
3. The velocity is positive throughout.
4. All of the above are true.
Subtopic:  Graphs |
 65%
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The \(x\)-coordinate of a particle moving along the \(x\)-axis at any instant is described by the equation:
\(x = (2-5t+6t^2),\) where \(x\) is in metres and \(t\) is in seconds.
What is the initial velocity of the particle?

1. \(2\) m/s 2. \(-5\) m/s
3. \(3\) m/s 4. \(12\) m/s
Subtopic:  Instantaneous Speed & Instantaneous Velocity |
 84%
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A Cheetah can accelerate from \(0\) to \(96\) km/h in \(2\) s. What is the average acceleration of the Cheetah?
1. \(10\) m/s2
2. \(13.3\) m/s2
3. \(15\) m/s2
4. \(48\) m/s2

Subtopic:  Acceleration |
 74%
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The displacement-time \((s\text-t)\) graphs of two moving particles \(A~\text{and}~B\) make angles of \(30^\circ\) and \(45^\circ\) with the \(x\text-\)axis as shown in the figure. The ratio of their respective velocity \(\left(\dfrac{v_A}{v_B}\right) \) is:
                   
1. \(1: \sqrt{3}\)
2. \(\sqrt{3}: 1\)
3. \(1:1\)
4. \(1:2\)
Subtopic:  Graphs |
 75%
From NCERT
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The ratio of the distances travelled by a freely falling body in the \(1\)st, \(2\)nd, \(3\)rd and \(4\)th second is:
1. \(1:1:1:1\)
2. \(1:2:3:4\)
3. \(1:4:9:16\)
4. \(1:3:5:7\)
Subtopic:  Uniformly Accelerated Motion |
 82%
From NCERT
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Given below are two statements: 
Assertion (A): A body is momentarily at rest at the instant it reverses the direction. 
Reason (R): A body cannot have acceleration if its velocity is zero at a given instant of time. 
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. (A) is False but (R) is True.
Subtopic:  Instantaneous Speed & Instantaneous Velocity |
 65%
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