Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 15

MEDIUM

NEET

IMPORTANT

Earn 100

A particle of mass $2 kg$ travels along a straight line with velocity $k = a \sqrt{x},$ where $a$ is a constant. The work done by net force during the displacement of particle from $x = 0$ to $x = 4 m$ is

50% studentsanswered this correctly

Important Questions on Work, Energy and Power

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 16

The position

x

of a particle moving along

x

-axis at time

(t)

is given by the equation

t = \sqrt{x} + 2,

where

x

is in meters and

t

in seconds. Find the work done by the force in first four seconds.

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 17

K . E .

acquired by a mass

m

in travelling a certain distance

d,

starting from rest, under the action of a constant force is

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 19

The total work done on a particle is equal to the change in its kinetic energy. This is applicable

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 20

A particle of mass $0.1 kg$ is subjected to a force which varies with distance as shown. If it starts its journey from rest at $x = 0,$ then its velocity at $x = 12 m$ is

Question Image

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 21

An unloaded bus can be stopped by applying brakes on straight road after covering a distance

x .

Suppose, the passenger add

50 %

of its weight as the load and the braking force remains unchanged, how far will the bus go after the application of the brakes? (Velocity of bus in both case is same)

EASY

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 22

Potential energy is defined

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 23

A stick of mass $m$ and length $l$ is pivoted at one end and is displaced through an angle $θ .$ The increase in potential energy is

Question Image

MEDIUM

NEET

IMPORTANT

Gamma Question Bank for Medical Physics>Chapter 6 - Work, Energy and Power>Assignment>Q 24

A spring with spring constant

k

when compressed by

1 cm,

the potential energy stored is

U .

If it is further compressed by

3 cm,

then change in its potential energy is