If a force of constant magnitude acts in direction perpendicular to motion of a particle, then its

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3-2.Motion in Plane

easy

If a force of constant magnitude acts in direction perpendicular to the motion of a particle, then its

ASpeed is uniform

BMomentum is uniform

CVelocity is uniform

DAll of these

Solution

(a)
No component of force is in the direction of motion (as $\vec{F} \perp \vec{V}$ ) so it cannot change the speed of particle. But velocity cannot be constant because force will change the direction of motion.

Standard 11

Physics

$Assertion$ : Centripetal and centrifugal forces cancel each other.
$Reason$ : Centrifugal force is a reaction of centripetal force

easy

(AIIMS-2011)

A body of mass $5\, kg$ is moving in a circle of radius $1\,m$ with an angular velocity of $2$ radian/sec. The centripetal force is ……… $N$

easy

(AIIMS-1998)

A boy ties a stone of mass $100 \,g$ to the end of a $2$ $m$ long string and whirls it around in a horizontal plane. The string can withstand the maximum tension of $80 \,N$. If the maximum speed with which the stone can revolve is $\frac{ K }{\pi} rev$. / $min$. The value of $K$ is (Assume the string is massless and unstretchable)

medium

(JEE MAIN-2022)

A stone of mass $1\,kg$ is tied to end of a massless string of length $1\,m$. If the breaking tension of the string is $400\,N$, then maximum linear velocity, the stone can have without breaking the string, while rotating in horizontal plane, is $…….\,ms^{-1}$

easy

(JEE MAIN-2023)

Three identical particles are joined together by a thread as shown in figure. All the three particles are moving in a horizontal plane. If the velocity of the outermost particle is $v_0$, then the ratio of tensions in the three sections of the string is

hard

If a force of constant magnitude acts in direction perpendicular to the motion of a particle, then its

Solution

Similar Questions

$Assertion$ : Centripetal and centrifugal forces cancel each other. $Reason$ : Centrifugal force is a reaction of centripetal force

A body of mass $5\, kg$ is moving in a circle of radius $1\,m$ with an angular velocity of $2$ radian/sec. The centripetal force is ……… $N$

A stone of mass $1\,kg$ is tied to end of a massless string of length $1\,m$. If the breaking tension of the string is $400\,N$, then maximum linear velocity, the stone can have without breaking the string, while rotating in horizontal plane, is $…….\,ms^{-1}$

Three identical particles are joined together by a thread as shown in figure. All the three particles are moving in a horizontal plane. If the velocity of the outermost particle is $v_0$, then the ratio of tensions in the three sections of the string is

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$Assertion$ : Centripetal and centrifugal forces cancel each other.
$Reason$ : Centrifugal force is a reaction of centripetal force