MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Kinetic Energy

Two guns of m...

Question

Two guns of mass $M_{A}$ and $M_{B}$ (with $M_{A} > M_{B}$ ) fire bullets of equal mass with equal bullet velocities. If $K_{A}$ and $K_{B}$ are the recoil kinetic energy of the two guns then

A

K_{A} > K_{B}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

K_{A} < K_{B}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

K_{A} = K_{B}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

nothing can be said

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B $K_{A} < K_{B}$
Since,
$E = \frac{m v^{2}}{2} = \frac{{(m v)}^{2}}{2 m} = \frac{p^{2}}{2 m}$

$E \propto \frac{1}{m} f o r c o n s t a n t p .$

$K_{A} < K_{B}$ since $M_{A} > M_{B}$

Suggest Corrections

thumbs-up

1

Similar questions

Q. The kinetic energies of a planet in an elliptical orbit about the sun at positions

A

B

C

K_{A}

K_{B}

K_{C}

A C

is the major axis and

S B

is perpendicular to

A C

at the position of the sun

S

as shown in the figure with

S A < S B

Q. Figure shows two small blocks placed on a smooth horizontal surface. They start moving from the same line with force

2 F

F

respectively acting on the blocks. Their momenta and kinetic energies at the instants of crossing the finishing line as shown in figure are

p_{A}, p_{B}

K_{A}, K_{B}

. Then choose the correct option.

Q. Two springs have spring constant

k_{A}

k_{B}

k_{A} > k_{B}

. The work required to stretch them by same extension will be:

Q. There are two mass less springs

A

B

of spring constant

K_{A}

K_{B}

respectively and

K_{A} > K_{B}

W_{A}

W_{B}

be denoted as work done on

A

and work done on

B

respectively, then:

Q. Which of the following statement(s) is/are correct for a salt of weak acid and weak base in an aqueous solution at

25^{\circ} C

K_{a}

is the dissociation constant for a weak acid and

K_{b}

is the dissociation constant for a weak base.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Kinetic Energy

PHYSICS

Watch in App

explore_more_icon

Explore more

Standard X Physics

Join BYJU'S Learning Program

CrossIcon