Kinematics of Circular Motion
PHXI04:MOTION IN A PLANE

361895 A particle is moving in a circular path. The acceleration and momentum vectors at an instant of time are \(\overrightarrow a = 2\widehat i + 3\widehat j\,m{\rm{/}}{s^2}\) and \(\overrightarrow p = 6\widehat i - 4\widehat j\,kg\,m{\rm{/}}s\). Then the motion of the particle is

1 uniform circular motion
2 circular motion with tangential acceleration
3 circular motion with tangential retardation
4 we cannot say anything about a and p only.
PHXI04:MOTION IN A PLANE

361896 A spot light \(S\)- rotates in a horizontal plane with a constant angular velocity of 0.1 rad/\(s\). The spot of light \(P\) moves along the wall at a distance 3\(m\). What is velocity of the spot \(P\) when \(\theta = 45^\circ \)?
supporting img

1 \(0.5\,m/s\)
2 \(0.6\,m/s\)
3 \(0.3\,m/s\)
4 \(0.4\,m/s\)
PHXI04:MOTION IN A PLANE

361897 For a particle performing uniform circular motion, choose the incorrect statement from the following.

1 Magnitude of particle velocity (speed) remains constant.
2 Particle velocity remains directed perpendicular to radius vector.
3 Direction of acceleration keeps changing as particle moves.
4 Magnitude of acceleration does not remain constant.
PHXI04:MOTION IN A PLANE

361898 I.
When an object follows a circular path at a constant speed, the motion of the object is called uniform circular motion
II.
The acceleration of an object in uniform circular motion is always present along tangential direction.
Which of the following statement (s) is/ are correct?

1 Only I
2 Both I and III
3 Both I and II
4 Neither I nor II
PHXI04:MOTION IN A PLANE

361899 Two stones of masses \(m\) and 2\(m\) are whirled in horizontal circles, the heavier one in a radius \(\frac{r}{2}\) and the lighter one in radius \(r\). The tangetial speed of lighter stone is \(n\) times that of the value of heavier stone when they experience same centripetal forces. The value of \(n\) is:

1 \(1\)
2 \(2\)
3 \(3\)
4 \(4\)
PHXI04:MOTION IN A PLANE

361895 A particle is moving in a circular path. The acceleration and momentum vectors at an instant of time are \(\overrightarrow a = 2\widehat i + 3\widehat j\,m{\rm{/}}{s^2}\) and \(\overrightarrow p = 6\widehat i - 4\widehat j\,kg\,m{\rm{/}}s\). Then the motion of the particle is

1 uniform circular motion
2 circular motion with tangential acceleration
3 circular motion with tangential retardation
4 we cannot say anything about a and p only.
PHXI04:MOTION IN A PLANE

361896 A spot light \(S\)- rotates in a horizontal plane with a constant angular velocity of 0.1 rad/\(s\). The spot of light \(P\) moves along the wall at a distance 3\(m\). What is velocity of the spot \(P\) when \(\theta = 45^\circ \)?
supporting img

1 \(0.5\,m/s\)
2 \(0.6\,m/s\)
3 \(0.3\,m/s\)
4 \(0.4\,m/s\)
PHXI04:MOTION IN A PLANE

361897 For a particle performing uniform circular motion, choose the incorrect statement from the following.

1 Magnitude of particle velocity (speed) remains constant.
2 Particle velocity remains directed perpendicular to radius vector.
3 Direction of acceleration keeps changing as particle moves.
4 Magnitude of acceleration does not remain constant.
PHXI04:MOTION IN A PLANE

361898 I.
When an object follows a circular path at a constant speed, the motion of the object is called uniform circular motion
II.
The acceleration of an object in uniform circular motion is always present along tangential direction.
Which of the following statement (s) is/ are correct?

1 Only I
2 Both I and III
3 Both I and II
4 Neither I nor II
PHXI04:MOTION IN A PLANE

361899 Two stones of masses \(m\) and 2\(m\) are whirled in horizontal circles, the heavier one in a radius \(\frac{r}{2}\) and the lighter one in radius \(r\). The tangetial speed of lighter stone is \(n\) times that of the value of heavier stone when they experience same centripetal forces. The value of \(n\) is:

1 \(1\)
2 \(2\)
3 \(3\)
4 \(4\)
PHXI04:MOTION IN A PLANE

361895 A particle is moving in a circular path. The acceleration and momentum vectors at an instant of time are \(\overrightarrow a = 2\widehat i + 3\widehat j\,m{\rm{/}}{s^2}\) and \(\overrightarrow p = 6\widehat i - 4\widehat j\,kg\,m{\rm{/}}s\). Then the motion of the particle is

1 uniform circular motion
2 circular motion with tangential acceleration
3 circular motion with tangential retardation
4 we cannot say anything about a and p only.
PHXI04:MOTION IN A PLANE

361896 A spot light \(S\)- rotates in a horizontal plane with a constant angular velocity of 0.1 rad/\(s\). The spot of light \(P\) moves along the wall at a distance 3\(m\). What is velocity of the spot \(P\) when \(\theta = 45^\circ \)?
supporting img

1 \(0.5\,m/s\)
2 \(0.6\,m/s\)
3 \(0.3\,m/s\)
4 \(0.4\,m/s\)
PHXI04:MOTION IN A PLANE

361897 For a particle performing uniform circular motion, choose the incorrect statement from the following.

1 Magnitude of particle velocity (speed) remains constant.
2 Particle velocity remains directed perpendicular to radius vector.
3 Direction of acceleration keeps changing as particle moves.
4 Magnitude of acceleration does not remain constant.
PHXI04:MOTION IN A PLANE

361898 I.
When an object follows a circular path at a constant speed, the motion of the object is called uniform circular motion
II.
The acceleration of an object in uniform circular motion is always present along tangential direction.
Which of the following statement (s) is/ are correct?

1 Only I
2 Both I and III
3 Both I and II
4 Neither I nor II
PHXI04:MOTION IN A PLANE

361899 Two stones of masses \(m\) and 2\(m\) are whirled in horizontal circles, the heavier one in a radius \(\frac{r}{2}\) and the lighter one in radius \(r\). The tangetial speed of lighter stone is \(n\) times that of the value of heavier stone when they experience same centripetal forces. The value of \(n\) is:

1 \(1\)
2 \(2\)
3 \(3\)
4 \(4\)
PHXI04:MOTION IN A PLANE

361895 A particle is moving in a circular path. The acceleration and momentum vectors at an instant of time are \(\overrightarrow a = 2\widehat i + 3\widehat j\,m{\rm{/}}{s^2}\) and \(\overrightarrow p = 6\widehat i - 4\widehat j\,kg\,m{\rm{/}}s\). Then the motion of the particle is

1 uniform circular motion
2 circular motion with tangential acceleration
3 circular motion with tangential retardation
4 we cannot say anything about a and p only.
PHXI04:MOTION IN A PLANE

361896 A spot light \(S\)- rotates in a horizontal plane with a constant angular velocity of 0.1 rad/\(s\). The spot of light \(P\) moves along the wall at a distance 3\(m\). What is velocity of the spot \(P\) when \(\theta = 45^\circ \)?
supporting img

1 \(0.5\,m/s\)
2 \(0.6\,m/s\)
3 \(0.3\,m/s\)
4 \(0.4\,m/s\)
PHXI04:MOTION IN A PLANE

361897 For a particle performing uniform circular motion, choose the incorrect statement from the following.

1 Magnitude of particle velocity (speed) remains constant.
2 Particle velocity remains directed perpendicular to radius vector.
3 Direction of acceleration keeps changing as particle moves.
4 Magnitude of acceleration does not remain constant.
PHXI04:MOTION IN A PLANE

361898 I.
When an object follows a circular path at a constant speed, the motion of the object is called uniform circular motion
II.
The acceleration of an object in uniform circular motion is always present along tangential direction.
Which of the following statement (s) is/ are correct?

1 Only I
2 Both I and III
3 Both I and II
4 Neither I nor II
PHXI04:MOTION IN A PLANE

361899 Two stones of masses \(m\) and 2\(m\) are whirled in horizontal circles, the heavier one in a radius \(\frac{r}{2}\) and the lighter one in radius \(r\). The tangetial speed of lighter stone is \(n\) times that of the value of heavier stone when they experience same centripetal forces. The value of \(n\) is:

1 \(1\)
2 \(2\)
3 \(3\)
4 \(4\)
PHXI04:MOTION IN A PLANE

361895 A particle is moving in a circular path. The acceleration and momentum vectors at an instant of time are \(\overrightarrow a = 2\widehat i + 3\widehat j\,m{\rm{/}}{s^2}\) and \(\overrightarrow p = 6\widehat i - 4\widehat j\,kg\,m{\rm{/}}s\). Then the motion of the particle is

1 uniform circular motion
2 circular motion with tangential acceleration
3 circular motion with tangential retardation
4 we cannot say anything about a and p only.
PHXI04:MOTION IN A PLANE

361896 A spot light \(S\)- rotates in a horizontal plane with a constant angular velocity of 0.1 rad/\(s\). The spot of light \(P\) moves along the wall at a distance 3\(m\). What is velocity of the spot \(P\) when \(\theta = 45^\circ \)?
supporting img

1 \(0.5\,m/s\)
2 \(0.6\,m/s\)
3 \(0.3\,m/s\)
4 \(0.4\,m/s\)
PHXI04:MOTION IN A PLANE

361897 For a particle performing uniform circular motion, choose the incorrect statement from the following.

1 Magnitude of particle velocity (speed) remains constant.
2 Particle velocity remains directed perpendicular to radius vector.
3 Direction of acceleration keeps changing as particle moves.
4 Magnitude of acceleration does not remain constant.
PHXI04:MOTION IN A PLANE

361898 I.
When an object follows a circular path at a constant speed, the motion of the object is called uniform circular motion
II.
The acceleration of an object in uniform circular motion is always present along tangential direction.
Which of the following statement (s) is/ are correct?

1 Only I
2 Both I and III
3 Both I and II
4 Neither I nor II
PHXI04:MOTION IN A PLANE

361899 Two stones of masses \(m\) and 2\(m\) are whirled in horizontal circles, the heavier one in a radius \(\frac{r}{2}\) and the lighter one in radius \(r\). The tangetial speed of lighter stone is \(n\) times that of the value of heavier stone when they experience same centripetal forces. The value of \(n\) is:

1 \(1\)
2 \(2\)
3 \(3\)
4 \(4\)