A particle is moving such that its position coordinates (x, y) are (2m, 3m) at time t=0, (6m, 7m) at time t=2s and (13m, 14m) at time t=5s. Average velocity vector (vav) from t=0 to t=5s is:
1. (13+14)
2. (+)
3. 2(+)
4. (+)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf three coordinates of a particle change according to the equations , then the magnitude of the velocity of the particle at time t = 1 second will be
1. unit
2. unit
3. 40 unit
4. unit
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA car turns at a constant speed on a circular track of radius 100 m, taking 62.8 s for every circular lap. The average velocity and average speed for each circular lap, respectively, is :
1. 0,0
2. 0, 10 m/s
3. 10 m/s, 10 m/s
4. 10 m/s, 0
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe coordinates of a moving particle at any time ‘t’ are given by x = αt3 and y = βt3. The speed of the particle at time ‘t’ is given by:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA particle moves along the positive branch of the curve y = where x = , & x and y are measured in metres and in seconds respectively. At = 2s, the velocity of the particle will be
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn 1.0 s, a particle goes from point A to point B, moving in a semicircle of radius 1.0 m (see figure). The magnitude of the average velocity is:
1. 3.14 m/s
2. 2.0 m/s
3. 1.0 m/s
4. Zero
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwo particles A and B, move with constant velocities \(\vec{v_1}\) and \(\vec{v_2}\) . At the initial moment their position vector are \(\vec{r_1}\) and \(\vec{r_2}\) respectively. The condition for particles A and B for their collision to happen will be
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwo particles move from A to C and A to D on a circle of radius R and diameter AB. If the time taken by both particles are the same, then the ratio of magnitudes of their average velocities is:
1. 2
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA particle moves on the curve . The angle of its velocity vector with the x-axis at the point will be:
1. 30
2. 60
3. 45
4. 75
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe position of a particle is given by where t is in seconds and the coefficients have the proper units for r to be in meters. The magnitude and direction of at t = 1.0 s are:
1. 4 m/s at with x-axis
2. 4 m/s at with x-axis
3. 5 m/s at with y-axis
4. 5 m/s at with x-axis
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology