A particle is moving in a circular path of radius $r$. The displacement after half a circle would be :
A particle is moving in a circular path of radius $r$. The displacement after half a circle would be :
- A
$2r$
- B
$\pi r$
- C
Zero
- D
$2\pi r$
Similar Questions
Which of the following is not a vector ?
Which of the following is not a vector ?
The graph given below is the distance$-$time graph of an object.
$(i)$ Find the speed of the object during first four seconds of its journey.
$(ii)$ How long was it stationary ?
$(iii)$ Does it represent a real life situation ? Justify your answer.
The graph given below is the distance$-$time graph of an object.
$(i)$ Find the speed of the object during first four seconds of its journey.
$(ii)$ How long was it stationary ?
$(iii)$ Does it represent a real life situation ? Justify your answer.
By giving an example, prove that rest and motion are relative terms.
By giving an example, prove that rest and motion are relative terms.
Give an example of a body which covers a certain distance, but its displacement is zero
Give an example of a body which covers a certain distance, but its displacement is zero
Ravi told his friend that his house is $1 \,km$ toward south from the main Post Office. Express displacement and the distance moved by the friend from the Post Office when he arrives at Ravi's house. Mention the reference point chosen by you.
Ravi told his friend that his house is $1 \,km$ toward south from the main Post Office. Express displacement and the distance moved by the friend from the Post Office when he arrives at Ravi's house. Mention the reference point chosen by you.