Distance and Displacement

Q. Question 2
A farmer moves along the boundary of a square field of side 10 m in 40 s. What will be the magnitude of displacement of the farmer at the end of 2 minutes 20 seconds?

Q.

Usha swims in a 90 m long pool. She covers 180 m in one minute by swimming from one end to the other and back along the same straight path. Find the average speed and average velocity of Usha.

Why displacement is taken 0 here?

Q.

A body is moving along a circular path of radius R. What will be the distance travelled and displacement of the body when it completes half a revolution?

Q.

A body travels a distance of 3 km towards East, then 4 km towards North and finally 9 km towards East.

(i) What is the total distance traveled?

(ii) What is the resultant displacement?

Q.

A body moves $6m$ north, $8m$ east, and $10m$ vertically upwards, what is its resultant displacement from the initial position (only magnitude).

Q.

(1)- A person walks along the sides of a square field.

Each side is 100 m long. What is the maximum magnitude of displacement of the person in any time interval

(2)- A car moves 100 m due east and then 25 m due west.

(a) What is the distance covered by the car? (b) what is its displacement?

Q.

A particle is moving in a circle of diameter 5m. What is it's displacement if it covers one and half revolution

Q.

Can displacement be zero even if distance is not zero ? Give one example to explain your answer.

Q.

Is displacement greater than distance?

Q. Hi mam, I have a doubt..

A body covers one complete revolution around a circular park of circumference 176m in 4 minutes. find the displacement of body after 6 minutes?

Q.

(a) What is the difference between 'distance travelled' by a body and its 'displacement' ? Explain with the help of a diagram.

(b) An ant travels a distance of 8 cm from P to Q and then moves a distance of 6 cm at right angles to PQ. Find its resultant displacement.

Q.

The tip of second hand of a clock takes 60sec to move once on the circular dial of the clock.If the radius of the dial of the clock be 10.5cm.Calculate the speed of the tip of the sec hand of the clock (π=22/7).

Q.

Is displacement a scalar quantity?

Q.

State whether the distance is a scalar or a vector quantity.

Q.

What is a reference point in physics?

Q.

Why is distance not a vector quantity?

Q.

Under what conditions can a body travel a certain distance and yet its resultant displacement be zero?

Q. A farmer moves one round along the boundary of a square field of side 10 m in 40 seconds point what will be the magnitude of displacement of the farmer at the end of 2 minutes 20 seconds from his initial position?

Q.

Which of the following can sometimes be 'zero' for a moving body ?

(i)average velocity

(ii) distance travelled

(iii) average speed

(iv) displacement

(a) only (i) (b) (i) and (ii) (c) (i) and (iv) (d) only (iv)

Q.

A body is moving along a straight line path with constant velocity. At an instant of time the distance travelled by it is $s$ and its displacement is $D$, then

1. $D<s$

2. $D>s$

3. $D=s$

4. $D\le s$

Q.

If the particle moves with a constant velocity its acceleration is---------------

Q. A person completes a round of circular track of radius $R$ in $40\text{s}$. At the end of $2\text{minutes}$, displacement will be

1. $2\pi r$
2. $3\pi R$
3. Zero
4. $7\pi R$

Q.

A ball is thrown vertically upwards. It rises to a height of 10m and comes back to ground, then :

1. The net displacement of the ball is zero

2. Both distance moved and displacement are 20 m each

3. Total distance covered by the ball is 10m

4. The total distance covered by the ball is zero

Q.

Following table gives the displacement of a car at different instants of time.

$\begin{array}{cccccc}Time\left(s\right)& 0& 1& 2& 3& 4\\ Displacement\left(m\right)& 0& 5& 10& 15& 20\end{array}$

(a) Draw the displacement-time sketch and find the average velocity of car.

(b) What will be the displacement of car at

(i) 2.5 s and (ii) 4.5 s ?

Q. The velocity-time graph shows the motion of a cyclist. Find (i) its acceleration (ii) its velocity and (iii) the distance covered by the cyclist in 15 seconds.

Q.

Fill in the following blanks with suitable words:

(a) Displacement is a ...................quantity whereas distance is a ...............quantity.

(b) The physical quantity which gives both, the speed and direction of motion of a body is called its .............

(c) A motorcycle has a steady...........of 3 $m/s^2$. This means that every.............its ......... increases by ..........

(d) Velocity is the rate of change of .............. It is measured in ..............

(e) Acceleration is the rate of change of....................... It is measured in.....................

Q.

A car travels a distance of 200 km from Delhi to Ambala towards North in 5 hours. Calculate (I)speed (ii)veloc vel of the car for this journey.

Q.

The actual length of the path covered by a moving object is called………….

Q. Define Displacement.

Q.

Which of the following statement is false?

1. If speed is zero , it's velocity also must be zero.

2. if velocity is zero , then it's speed need not be zero

3. If speed is constant , then it's speed must be constant .

4. If velocity is constant , then it's speed must be constant.