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

HARD

11th ICSE

IMPORTANT

Earn 100

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.

Important Questions on Vectors

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.

HARD

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 6 - Vectors>NUMERICALS>Q 10

A body is acted upon by a force of

5 N

. It is displaced

2 m

perpendicular to the direction of force. Calculate the work done by the force.

HARD

11th ICSE

IMPORTANT

ISC Physics Class XI Part 1>Chapter 6 - Vectors>NUMERICALS>Q 11

The magnitude of two vectors

\vec{A}

and

\vec{B}

are

5

and

4

units respectively and the angle between them is

30 °

. Find values of

\vec{A} \cdot \vec{B}

.