E M B I B E

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 7 - Circular Motion>QUESTIONS FOR SHORT ANSWER>Q 8

MEDIUM

JEE Main

IMPORTANT

Earn 100

Consider the circular motion of the earth around the sun. Which of the following statements is more appropriate?

(a) Gravitational attraction of the sun on the earth is equal to the centripetal force.
(b) Gravitational attraction of the sun on the earth is the centripetal force.

Important Questions on Circular Motion

MEDIUM

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 7 - Circular Motion>QUESTIONS FOR SHORT ANSWER>Q 9

A car driver is going at some speed

v

, suddenly finds a wide wall at a distance

r

. Should he apply brake or turn the car in a circle of radius $r$ to avoid hitting the wall?

MEDIUM

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 7 - Circular Motion>QUESTIONS FOR SHORT ANSWER>Q 10

A heavy mass

m

is hanging from a string in equilibrium without breaking it. When the same mass is set into oscillation, the string breaks. Explain.

MEDIUM

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 7 - Circular Motion>OBJECTIVE I>Q 1

A particle when moves in a circle with a uniform speed:

EASY

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 7 - Circular Motion>OBJECTIVE I>Q 2

Two cars having masses

m_{1}

and

m_{2}

move in circles of radii

r_{1}

and

r_{2}

respectively. If they complete the circle in equal time, then what will be the ratio of their angular speeds

\frac{ω_{1}}{ω_{2}}

?

MEDIUM

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 7 - Circular Motion>OBJECTIVE I>Q 3

A car moves at a constant speed on a road as shown in figure. What is the normal force by the road on the car $N_{A}$ and $N_{B}$ , when it is at the points $A$ and $B$ , respectively?

Question Image

MEDIUM

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 7 - Circular Motion>OBJECTIVE I>Q 4

A particle of mass $m$ is observed from an inertial frame of reference and is found to move in a circle of radius $r$ with a uniform speed $v$ . What is the centrifugal force on it?

EASY

JEE Main

IMPORTANT

CONCEPTS OF PHYSICS [VOLUME 1]>Chapter 7 - Circular Motion>OBJECTIVE I>Q 5

A particle of mass