362235
Which of the following can be zero, when a particle is in motion for sometime?
1 Speed
2 Displacement
3 Distance
4 None of these
Explanation:
Displacement of a particle may be zero,because final position of the particle may coincide with its initial position.
PHXI03:MOTION IN A STRAIGHT LINE
362236
An athlete completes one round of a circular track of radius R in 40 sec. What will be his displacement at the end of 3 min?
1 Zero
2 \(2R\)
3 \(2\pi R\)
4 \(7\pi R\)
Explanation:
The body completes for and half rotations and hence the displacement is equal \(2R\) (shortest distance between the initial and final position)
PHXI03:MOTION IN A STRAIGHT LINE
362237
An insect crawls a distance of \(4 \, m\) along north in \(10 \, s\) and then a distance of \(3 \, m\) along east in \(5 \, s\). The average velocity of the insect is
362238
Assertion : Position-time graph of a stationary object is a straight line parallel to time axis. Reason : For a stationary object, position does not change with time.
1 Both assertion and reason are correct and reason is the correct explanation of assertion.
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.
362235
Which of the following can be zero, when a particle is in motion for sometime?
1 Speed
2 Displacement
3 Distance
4 None of these
Explanation:
Displacement of a particle may be zero,because final position of the particle may coincide with its initial position.
PHXI03:MOTION IN A STRAIGHT LINE
362236
An athlete completes one round of a circular track of radius R in 40 sec. What will be his displacement at the end of 3 min?
1 Zero
2 \(2R\)
3 \(2\pi R\)
4 \(7\pi R\)
Explanation:
The body completes for and half rotations and hence the displacement is equal \(2R\) (shortest distance between the initial and final position)
PHXI03:MOTION IN A STRAIGHT LINE
362237
An insect crawls a distance of \(4 \, m\) along north in \(10 \, s\) and then a distance of \(3 \, m\) along east in \(5 \, s\). The average velocity of the insect is
362238
Assertion : Position-time graph of a stationary object is a straight line parallel to time axis. Reason : For a stationary object, position does not change with time.
1 Both assertion and reason are correct and reason is the correct explanation of assertion.
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.
362235
Which of the following can be zero, when a particle is in motion for sometime?
1 Speed
2 Displacement
3 Distance
4 None of these
Explanation:
Displacement of a particle may be zero,because final position of the particle may coincide with its initial position.
PHXI03:MOTION IN A STRAIGHT LINE
362236
An athlete completes one round of a circular track of radius R in 40 sec. What will be his displacement at the end of 3 min?
1 Zero
2 \(2R\)
3 \(2\pi R\)
4 \(7\pi R\)
Explanation:
The body completes for and half rotations and hence the displacement is equal \(2R\) (shortest distance between the initial and final position)
PHXI03:MOTION IN A STRAIGHT LINE
362237
An insect crawls a distance of \(4 \, m\) along north in \(10 \, s\) and then a distance of \(3 \, m\) along east in \(5 \, s\). The average velocity of the insect is
362238
Assertion : Position-time graph of a stationary object is a straight line parallel to time axis. Reason : For a stationary object, position does not change with time.
1 Both assertion and reason are correct and reason is the correct explanation of assertion.
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.
362235
Which of the following can be zero, when a particle is in motion for sometime?
1 Speed
2 Displacement
3 Distance
4 None of these
Explanation:
Displacement of a particle may be zero,because final position of the particle may coincide with its initial position.
PHXI03:MOTION IN A STRAIGHT LINE
362236
An athlete completes one round of a circular track of radius R in 40 sec. What will be his displacement at the end of 3 min?
1 Zero
2 \(2R\)
3 \(2\pi R\)
4 \(7\pi R\)
Explanation:
The body completes for and half rotations and hence the displacement is equal \(2R\) (shortest distance between the initial and final position)
PHXI03:MOTION IN A STRAIGHT LINE
362237
An insect crawls a distance of \(4 \, m\) along north in \(10 \, s\) and then a distance of \(3 \, m\) along east in \(5 \, s\). The average velocity of the insect is
362238
Assertion : Position-time graph of a stationary object is a straight line parallel to time axis. Reason : For a stationary object, position does not change with time.
1 Both assertion and reason are correct and reason is the correct explanation of assertion.
2 Both assertion and reason are correct but reason is not the correct explanation of assertion.
