(C) The particle returns to its starting point,which means the final position is the same as the initial position. Therefore,the displacement is $0\,

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Displacement of the particle is $30\, m$

(C) The particle returns to its starting point,which means the final position is the same as the initial position. Therefore,the displacement is $0\, m$. Statement $(a)$ is true.The average speed is defined as the total distance divided by the total time. Given total distance $= 30\, m$ and total time $= 10\, s$,the average speed is $\frac{30\, m}{10\, s} = 3\, m/s$. Statement $(b)$ is true.Since the displacement is $0\, m$,statement $(c)$ is false. Thus,the correct answer is $(c)$.

Class 11 Physics Motion in Straight Line Mix Examples-Motion in Straight Line

Easy

$A$ particle is constrained to move on a straight line path. It returns to the starting point after $10\, s$. The total distance covered by the particle during this time is $30\, m$. Which of the following statements about the motion of the particle is false?

A
Displacement of the particle is zero
B
Average speed of the particle is $3\, m/s$
C
Displacement of the particle is $30\, m$
D
Both $(a)$ and $(b)$

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Motion in Straight Line

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Mix Examples-Motion in Straight Line

State whether the following statements are true or false:
$(a)$ Velocity can change without a change in speed.
$(b)$ The total distance covered by a freely falling body in a given time is directly proportional to the time.
$(c)$ $A$ particle is a point object that possesses dimensions.

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Assertion $(A)$: The angle between acceleration and velocity of a body in one-dimensional motion is always zero. Reason $(R)$: One-dimensional motion is along a straight line.

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An aircraft is flying at a height of $3400 \; m$ above the ground. If the angle subtended at a ground observation point by the aircraft positions $10.0 \; s$ apart is $30^{\circ}$,what is the speed in $m/s$ of the aircraft?

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$A$ body of mass $0.40 \;kg$ moving initially with a constant speed of $10 \;m s^{-1}$ to the north is subject to a constant force of $8.0 \;N$ directed towards the south for $30 \;s$. Take the instant the force is applied to be $t=0$,the position of the body at that time to be $x=0$,and predict its position at $t=-5 \;s, 25 \;s, 100 \;s$.

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Choose the correct statement.

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$A$ particle is constrained to move on a straight line path. It returns to the starting point after $10\, s$. The total distance covered by the particle during this time is $30\, m$. Which of the following statements about the motion of the particle is false?

Similar Questions

State whether the following statements are true or false:$(a)$ Velocity can change without a change in speed.$(b)$ The total distance covered by a freely falling body in a given time is directly proportional to the time.$(c)$ $A$ particle is a point object that possesses dimensions.

Assertion $(A)$: The angle between acceleration and velocity of a body in one-dimensional motion is always zero. Reason $(R)$: One-dimensional motion is along a straight line.

An aircraft is flying at a height of $3400 \; m$ above the ground. If the angle subtended at a ground observation point by the aircraft positions $10.0 \; s$ apart is $30^{\circ}$,what is the speed in $m/s$ of the aircraft?

Choose the correct statement.

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State whether the following statements are true or false:
$(a)$ Velocity can change without a change in speed.
$(b)$ The total distance covered by a freely falling body in a given time is directly proportional to the time.
$(c)$ $A$ particle is a point object that possesses dimensions.