A particle is executing uniform circular motion with velocity \(\vec v\) and acceleration \(\vec a.\) Which of the following is true?
1. \(\vec v\) is a constant; \(\vec a\) is not a constant
2. \(\vec v\) is not a constant; \(\vec a\) is not a constant
3. \(\vec v\) is a constant; \(\vec a\) is a constant
4. \(\vec v\) is not a constant; \(\vec a\) is a constant

Subtopic:  Circular Motion |
 53%
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.

A ball is projected from point \(A\) with velocity \(20\) ms–1 at an angle \(60^\circ\) to the horizontal direction. At the highest point \(B\) of the path (as shown in figure), the velocity \(v\) (in ms–1) of the ball will be:
  
1. \(20\) 2. \(10\sqrt3\)
3. zero 4. \(10\)
Subtopic:  Projectile Motion |
 67%
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.

The position of a particle is given by;
\(\vec r(t)=4t\hat i+2t^2\hat j+5\hat k\)
where \(t\) is in seconds and \(r\) in metre. Find the magnitude and direction of velocity \(v(t)\), at \(t=1~\mathrm{s}\), with respect to \(x\)-axis:
1. \(4\sqrt2~\text{ms}^{-1},45^\circ\) 2. \(4\sqrt2~\text{ms}^{-1},60^\circ\)
3. \(3\sqrt2~\text{ms}^{-1},30^\circ\) 4. \(3\sqrt2~\text{ms}^{-1},45^\circ\)
Subtopic:  Speed & Velocity |
 77%
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

A bullet is fired from a gun at the speed of \(280\) ms–1 in the direction \(30^\circ\) above the horizontal. The maximum height attained by the bullet is: (\(g=9.8\) ms–2, \(\mathrm{sin}30^{0}=0.5\) )
1. \(3000\) m 2. \(2800\) m
3. \(2000\) m 4. \(1000\) m
Subtopic:  Projectile Motion |
 61%
From NCERT
NEET - 2023
Please attempt this question first.
Hints
Please attempt this question first.

A cricket ball is thrown by a player at a speed of \(20\) m/s in a direction \(30^\circ\) above the horizontal. The maximum height attained by the ball during its motion is: (Take \(g=10\) m/s2)
1. \(5\) m
2. \(10\) m
3. \(20\) m
4. \(25\) m
Subtopic:  Projectile Motion |
 73%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Rain is falling vertically downward with a speed of \(35~\text{m/s}\). Wind starts blowing after some time with a speed of \(12~\text{m/s}\) in East to West direction. The direction in which a boy standing at the place should hold his umbrella is:

1. \(\text{tan}^{-1}\Big(\frac{12}{37}\Big)\) with respect to rain
2. \(\text{tan}^{-1}\Big(\frac{12}{37}\Big)\) with respect to wind
3. \(\text{tan}^{-1}\Big(\frac{12}{35}\Big)\) with respect to rain
4. \(\text{tan}^{-1}\Big(\frac{12}{35}\Big)\) with respect to wind
Subtopic:  Relative Motion |
 69%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

A ball is projected with a velocity of \(10\) ms–1 at an angle of \(60^\circ\) with the vertical direction. Its speed at the highest point of its trajectory will be:
1.  \(10\) ms–1
2.  zero
3.  \(5\sqrt3\) ms–1
4.  \(5\) ms–1
Subtopic:  Projectile Motion |
 59%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

A particle moving with uniform speed in a circular path maintains:
1. constant acceleration.
2. constant velocity but varying acceleration.
3. varying velocity and varying acceleration.
4. constant velocity.
Subtopic:  Circular Motion |
 57%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.

For a smoothly running analog clock, the ratio of number of rotations made in a day by the hour hand and second hand respectively, is:
1. \(24 :1\)
2. \(1:720\)
3. \(1:60\)
4. \(2:5\)
Subtopic:  Circular Motion |
 56%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

A body is falling freely in a resistive medium. The motion of the body is described by \({\large\frac{dv}{dt}}=(4-2v),\) where \(v\) is the velocity of body at any instant (in ms-1). The initial acceleration and terminal velocity of the body, respectively, are:
1. \(4\) ms-2\(2\) ms-1
2. \(2\) ms-2\(4\) ms-1
3. \(6\) ms-2\(2\) ms-1
4. \(2\) ms-2\(6\) ms-1
Subtopic:  Speed & Velocity |
 58%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.