MyQuestionIcon

1

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

Average Velocity in 2D Motion

Find the mass...

Question

Find the mass of a body which has $5 J$ of kinetic energy while moving at a speed of $2 m / s$ .

Open in App

Solution

$K E = \frac{1}{2} m v^{2}$
$m = \frac{2 K E}{v^{2}} = \frac{2 \times 5}{4} = 2.5 k g$

Suggest Corrections

thumbs-up

3

Similar questions

What is the kinetic energy of a body mass 1 kg moving with a speed of 2 m/s ?

Q. Find the kinetic energy of a body of mass

200 g

moving with a speed of

20 c m / s

.

Q. Calculate the kinetic energy of a body of mass

10 k g

moving with a velocity

2 m s^{- 1}

.

A body of mass 60kg is moving with a speed of 50 m/s .find its kinetic energy.

Q. A particle of mass 5 kg strikes a body of mass

2.5 k g

at rest elastically. The

2.5 k g

mass after collision moves with a kinetic energy of

5 J

.The kinetic energy of 5 kg mass before collision is

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Speed and Velocity

PHYSICS

Watch in App

explore_more_icon

Explore more

Average Velocity in 2D Motion

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon