Intermediate First Year Physics>Chapter 4 - Motion in a Plane>EXERCISES>Q 4

EASY

11th Telangana Board

IMPORTANT

Earn 100

For a particle projected slantwise from the ground, the magnitude of its position vector with respect to the point of projection, when it is at the highest point of the path is found to be $\sqrt{2}$ times the maximum height reached by it. Show that the angle of projection is $\tan^{- 1} (2) .$

Important Questions on Motion in a Plane

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 4 - Motion in a Plane>EXERCISES>Q 5

An object is launched from a cliff

20 m

above the ground at an angle of

30 °

above the horizontal with an initial speed of

30 m / s .

How far horizontally does the object travel before landing on the ground?

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 4 - Motion in a Plane>EXERCISES>Q 6

O is a point on the ground chosen as origin, A body first suffers a displacement of

10 \sqrt{2} m

North-East, next

10 m

North and finally North-West. How far it is from the origin?

EASY

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 4 - Motion in a Plane>EXERCISES>Q 7

From a point on the ground a particle is projected with initial velocity

u,

such that its horizontal range is maximum. Find the magnitude of average velocity during its ascent.

EASY

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 4 - Motion in a Plane>EXERCISES>Q 8

A particle is projected from the ground with some initial velocity making an angle of

45 °

with the horizontal. It reaches a height of

7.5 m

above the ground while it travels a horizontal distance of

10 m

from the point of projection. Find the initial speed of projection.

EASY

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 4 - Motion in a Plane>EXERCISES>Q 9

Wind is blowing from the south at

5 m / s .

To a cyclist it appears to be blowing from the east at

5 m / s .

Show that the velocity of the cyclist is

5 \sqrt{2} m / s

towards north - east.

EASY

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 4 - Motion in a Plane>EXERCISES>Q 10

A person walking at

4 m / s

finds rain drops falling slantwise in to his face with a speed of

4 m / s

at an angle of

30 °

with the vertical. Show that the actual speed of the rain drops is

4 m / s .

EASY

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 4 - Motion in a Plane>EXERCISES>Q 4.1

State, for each of the following physical quantities, if it is a scalar or a vector:

Volume, mass, speed, acceleration, density, number of moles, velocity, angular frequency, displacement, angular velocity.

EASY

11th Telangana Board

IMPORTANT

Intermediate First Year Physics>Chapter 4 - Motion in a Plane>EXERCISES>Q 4.2

Pick out the two scalar quantities in the following list:

Force, angular momentum, work, current, linear momentum, electric field, average velocity, magnetic moment, relative velocity.