Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 3

EASY

NEET

IMPORTANT

Earn 100

If $250 J$ of work is done in sliding a $5 kg$ block up an inclined plane of height $4 m .$ Work done against friction is $(g = 10 m s^{- 2})$

50% studentsanswered this correctly

Important Questions on Work, Energy and Power

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 4

A man carries a load on his head through a distance of

5 m

. The maximum amount of work is done when he

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 5

A rigid body moves a distance of

10 m

along a straight line under the action of a force of

5 N .

If the work done by this force on the body is

25

joules, the angle which the force makes with the direction of motion of the body is

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 6

A block of mass $m$ is pulled along a circular arc by means of a constant horizontal force $F$ as shown. Work done by this force in pulling the block from $A$ to $B$ is

Question Image

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 7

A particle is displaced from a position

(2 \hat{i} - \hat{j} + \hat{k})

metre to another position

(3 \hat{i} + 2 \hat{j} - 2 \hat{k})

metre under the action of force

(2 \hat{i} + \hat{j} - \hat{k}) N .

Work done by the force is

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 8

A string is used to pull a block of mass $m$ vertically up by a distance $h$ at a constant acceleration $\frac{g}{4}$ . The work done by the tension in the string is

Question Image

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 9

Two bodies of masses $m_{1}$ and $m_{2}$ have same momentum. The ratio of their $K E$ is

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 10

K E

Of a body is increased by

44 % .

What is the percent increase in the momentum?

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 11

When momentum of a body increases by

200 %,

its

K E

increases by