A particle starting from the point (1, 2) moves in a straight line in the XY plane. Its coordinates at a later time are (2, 3). The path of the particle makes, with the x-axis, an angle of
1. 30°
2. 45°
3. 60°
4. data insufficient
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA particle is projected from a horizontal plane (x-z plane) such that its velocity vector at time t is given by . Its range on this horizontal plane is given by
1.
2.
3.
4. None
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA man is walking on the road with a speed 3 m/s. Rain is falling vertically at speed 3 m/s. At what angle from
the vertical, man has to hold his umbrella to avoid the rain drops?
1.
2. 30o
3. 60o
4. 90o
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA river is 1 km wide. The banks are straight and parallel. The current is 5 km/h and is parallel to the banks. A boat has a maximum speed of 3 km/h in still water. In what direction should the boat head so as to arrive at point B directly opposite to its starting point A?
1. directly across the river
2. head upstream from the line AB
3. head
4. the trip from A to B is not possible with this speed
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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 & BiologyA particle moves along a parabolic path y = 9x2 in such a way that the x component of the velocity remains constant and has a value of . It can be deduced that the acceleration of the particle will be
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThree balls are thrown from the top of a building with equal speeds at different angles. When the balls strike the ground, their speeds are respectively, then:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFigure below shows a body of mass M moving with a uniform speed v on a circular path of radius, R. What is the change in acceleration in going from P1 to P2?
1. zero
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA particle is projected with a speed u at an angle to the horizontal. Radius of curvature at highest point of its trajectory is
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyTwo particles A and B are moving in a uniform circular motion in concentric circles of radii with speeds respectively. Their time periods of rotation are the same. The ratio of angular speed of A to that of B will be:
1. 1: 1
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology