Beta Question Bank for Medical: Physics>Chapter 8 - Work, Energy and Power>Exercise (Conceptual Questions)>Q 8

EASY

NEET

IMPORTANT

Earn 100

Calculate the work done for the following. $F - d$ curves to

.

50% studentsanswered this correctly

Important Questions on Work, Energy and Power

MEDIUM

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 8 - Work, Energy and Power>Exercise (Conceptual Questions)>Q 9

A force

F = K x^{2}

acts on a particle at an angle of

60^{0}

with the

x -

axis. The work done in displacing the particle from

x_{1}

to

x_{2}

will be -

MEDIUM

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 8 - Work, Energy and Power>Exercise (Conceptual Questions)>Q 10

The work done against gravity in taking

10 kg

mass at

1 m

height in

1 s

will be:

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 8 - Work, Energy and Power>Exercise (Conceptual Questions)>Q 11

A force of 10N displaces an object by 10m. If work done is 50J then direction of force make an angle with direction of displacement :

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 8 - Work, Energy and Power>Exercise (Conceptual Questions)>Q 12

A body of mass

6 kg

under a force that causes displacement in it given

S = \frac{t^{2}}{4} m

, where

t

is time. The work done by the force in

2 seconds

is

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 8 - Work, Energy and Power>Exercise (Conceptual Questions)>Q 13

A force

\vec{F} = (5 \hat{i} + 4 \hat{j}) N

acts on a body and produces a displacement

\vec{s} = (6 \hat{i} - 5 \hat{j} + 3 \hat{k}) m

. The work done will be

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 8 - Work, Energy and Power>Exercise (Conceptual Questions)>Q 14

A force $F$ acting on an object varies with distance $x$ as shown here. The work done by the force in moving the object from $x = 0$ to $x = 6 m$ is

Question Image

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 8 - Work, Energy and Power>Exercise (Conceptual Questions)>Q 15

A stone of mass

m

is tied to a string of length

2 m

at one end and by holding the second end, it is whirled into a horizontal circle. Then, the work done will be,

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 8 - Work, Energy and Power>Exercise (Conceptual Questions)>Q 16

A particle is moved from a position,

\vec{r_{1}} = (3 \hat{i} + 2 \hat{j} - 6 \hat{k}) m

to a position,

{\vec{r}}_{2} = (14 \hat{i} + 13 \hat{j} - 9 \hat{k}) m

under the action of a force,

\vec{F} = (4 \hat{i} + \hat{j} + 3 \hat{k}) N

. The work done is equal to,