# a disc of radius r is rolling purely on a flat horizontal surface

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## A disc of radius R is rolling purely on a flat horizontal surface, with a constant angular velocity. The angle between the velocity and the acceleration vectors of point P is :

Click here👆to get an answer to your question ✍️ A disc of radius R is rolling purely on a flat horizontal surface, with a constant angular velocity. The angle between the velocity and the acceleration vectors of point P is :

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## A disc of radius R is rolling purely on a flat horizontal surface, with a constant angular velocity. The angle between the velocity and the acceleration vectors of point P is :

**A**

## Zero

**B**45

o

**C**135

o

**D**tan

−1 (1/2) Medium Open in App

Updated on : 2022-09-05

Solution Verified by Toppr

Correct option is B)

The acceleration vector is always in the horizontal direction for any point on the disc. The velocity of point P is composed if two components- one in the horizontal direction and the other in the vertical direction perpendicular to the radius. Both of these are equal to v and thus their resultant is2 v at an angle of 45 0

to the horizontal. Thus we get the angle between the velocity and the acceleration vectors.

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## A disc of radius R is rolling purely on a flat horizontal surface, with a constant angular velocity.

A disc of radius R is rolling purely on a flat horizontal surface, with a constant angular velocity.The angle between ... (C) 135º (D) tan -1 (1/2)

## A disc of radius R is rolling purely on a flat horizontal surface, with a constant angular velocity.

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## A disc of radius R is rolling purely on a flat horizontal surface, with a constant angular velocity. The angle between the velocity and acceleration vectors of point P is .

.A disc of radius R is rolling purely on a flat horizontal surface, with a constant angular velocity. The angle between the velocity and acceleration vectors of point P is .

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A disc of radius R is rolling ...

A disc of radius `R` is rolling purely on a flat horizontal surface, with a constant angular velocity. The angle between the velocity and acceleration vectors of point `P` is

.

Updated On: 27-06-2022

( 00 : 30 ) ADVERTISEMENT Text Solution Open Answer in App A zero B `45^@` C `135^@` D `tan^-1(1//2)` Answer

The correct Answer is B

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