Physics Crash Course NDA & NA EE>Chapter 5 - Circular Motion>Exercise 1>Q 2

EASY

NDA & NA EE

IMPORTANT

Earn 100

A train is moving towards north. At one place it turns towards north-east. Here, we observe that:

20% studentsanswered this correctly

Important Questions on Circular Motion

EASY

NDA & NA EE

IMPORTANT

Physics Crash Course NDA & NA EE>Chapter 5 - Circular Motion>Exercise 1>Q 3

Two cars of masses

m_{1}

, and

m_{2}

are moving in the circles of radii

r_{1}

and

r_{2}

respectively. Their angular speeds

{}^{'}ω_{1}^{'}

and

{}^{'}ω_{2}^{'}

are such that they both complete one revolution in the same time

t

. The ratio of linear speed of

m_{1}

' to the linear speed of

m_{2}

is

EASY

NDA & NA EE

IMPORTANT

Physics Crash Course NDA & NA EE>Chapter 5 - Circular Motion>Exercise 1>Q 4

A clock has a continuously moving second's hand of $0.1 m$ length. The average acceleration of the tip of the hand (in units of $m s^{- 2}$ ) is of the order of :

EASY

NDA & NA EE

IMPORTANT

Physics Crash Course NDA & NA EE>Chapter 5 - Circular Motion>Exercise 1>Q 5

A particle is performing uniform circular motion along the circumference of a circle of diameter

50 cm

with frequency

2 Hz

. The acceleration of the particle in

m s^{- 2}

is:

EASY

NDA & NA EE

IMPORTANT

Physics Crash Course NDA & NA EE>Chapter 5 - Circular Motion>Exercise 1>Q 6

One end of a string of length

l

is connected to a particle of mass

m

and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed

v

, the net force on the particle (directed towards the centre) is: (Where

T

is the tension in the string) [Choose the correct alternative].

EASY

NDA & NA EE

IMPORTANT

Physics Crash Course NDA & NA EE>Chapter 5 - Circular Motion>Exercise 1>Q 7

One end of a string of length

' l'

is connected to a particle of mass

' m'

and the other to a small peg on a smooth horizontal table. If the particle moves in a circle with speed

' v'

, the net force on the particle (directed towards the centre is: (

T

is the tension in the string)

EASY

NDA & NA EE

IMPORTANT

Physics Crash Course NDA & NA EE>Chapter 5 - Circular Motion>Exercise 1>Q 8

It is difficult to walk on a slippery road. Sand was thrown on the slippery road so that people can walk easily on the road. When sand is thrown on the road

EASY

NDA & NA EE

IMPORTANT

Physics Crash Course NDA & NA EE>Chapter 5 - Circular Motion>Exercise 1>Q 9

If the radius of the circular track decreases, then the angle of banking,