ISC Physics Class XI Part 1>Chapter 6 - Vectors>NUMERICALS>Q 1

HARD

11th ICSE

IMPORTANT

Earn 100

The magnitudes of two mutually perpendicular vectors $\vec{P}$ and $\vec{Q}$ are $5$ and $7$ respectively. Find the magnitude of $\vec{P} + \vec{Q}$ and $\vec{P} - \vec{Q}$ .

Important Questions on Vectors

MEDIUM

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 6 - Vectors>NUMERICALS>Q 2

A car is going towards north with a velocity

20 m s^{- 1}

. After some time it starts to go towards south with velocity

20 m s^{- 1}

. Determine change in the velocity of the car.

HARD

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 6 - Vectors>NUMERICALS>Q 3

The velocity of a particle moving on a circular path is

5 c m s^{- 1}

towards north at any instant. After traversing one-fourth of the path its velocity is

5 c m s^{- 1}

towards east. Indicate the change in velocity in a vector diagram.

HARD

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 6 - Vectors>NUMERICALS>Q 4

Two forces of

6 N

and

8 N

are acting on a point at an angle of

90 °

with each other. Determine the magnitude and direction of the resultant force by drawing a vector diagram.

HARD

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 6 - Vectors>NUMERICALS>Q 5

A force of

500 N

is acting towards east and another of

600 N

towards north. Subtract the first force from second by drawing a vector diagram.

MEDIUM

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 6 - Vectors>NUMERICALS>Q 6

The velocity of a body is

100 km / h

,

30 °

west of south. Find north and east components by drawing vector diagram.

HARD

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 6 - Vectors>NUMERICALS>Q 7

The handle of grass roller is pulled by force of

50 N

. If the handle makes an angle of

30 °

with horizontal, calculate the magnitudes of the horizontal and vertical components of force by vector diagram?

MEDIUM

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 6 - Vectors>NUMERICALS>Q 8

When a force of

10 N

acts on a body, the body is displaced

2 m

in the direction of force. Calculate the work done by force.

HARD

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 6 - Vectors>NUMERICALS>Q 9

In displacing a body

5 m

by a force of

50 N

the work done is

125 J

. Find out the angle between the direction of force and displacement.