Question

A 50g bullet is traveling at a speed of 50m/s.
Find its kinetic energy.​

Answer 1

Answer:

Now,

v

2

=u

2

+2as

0=(500)

2

+2(a)

100

(10)

⇒a=−1250000m/s

Average retarding force =

1000

50

×(1250000)

⇒F

av

=62500N

K.E=

2

1

mv

2

=

2

1

×

1000

50

×(500)

2

K.E=

4

25000

=6250joule

Answer 2

Mark as brainliest and follow

Mass (m) = 50/ 1000 kg

= 0.05 kg

velocity = 50 m/s

$kinetic \: energy = \frac{1}{2} m {v}^{2}$

$= \frac{1}{2} \times \frac{5}{ 100 } \times 50 \times 50$

$= \frac{125}{2}$

= 62.5 J