MyQuestionIcon

1

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

Application of Second law of Motion

A 10 g bullet...

Question

A $10 g$ bullet is fired from a gun with a velocity of $250 m s^{- 1}$ . How much force is experienced by the gunman if it takes $0.1 s$ to fire a shot?

A

25 N

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

B

20 N

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

C

23 N

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

D

30 N

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

Open in App

Solution

The correct option is A $25 N$
Given,
Mass of the bullet = $10 g$
Velocity with which it is moving = $250 m s^{- 1}$
Time taken to fire the bullet from the gun = $0.1 s$

The force experienced by the gunman is:
$F = \frac{m v}{t}$
$F = \frac{10}{1000 k g} \times 250 m / s$
$F = 25 k g m / s$ or $F = 25 N$

Suggest Corrections

thumbs-up

0

Similar questions

Q. A gun of mass 3 kg fires a bullet of mass 30 g. The bullet takes 0.003 s to move through the barrel of the gun and acquires a velocity of 100 m/s. Calculate:
(a) the velocity with which the gun recoils.
(b) the force exerted on gunman due to recoil of the gun

Q. Bullets of mass

10 g

each are fired from a machine gun at a rate of

6

bullets/minute. The muzzle velocity of bullets is

100 m / s

. The thrust force (in

N

) due to firing bullets experienced by the person holding the gun stationary is

10^{- x}

x

.

Q. A bullet of mass 10 g is fired from a rifle. The bullet takes 0.003 s to move through its barrel and leaves with a velocity of

300 m s^{- 1}

. What is the force exerted on the bullet by the rifle?

Q. A bullet of mass

0.01 kg

is fired from a gun weighing

2 kg

. Calculate the velocity with which the gun recoils if

10

bullets are fired at the same time with a speed of

250 m/s

+ v e x

axis along the direction of firing.

Q. Bullets of mass

40 g

each are fired from a machine gun with a velocity of

10^{3} m / s

. If the person firing the bullets experience an average force of

200 N

, then the number of bullets fired per minute will be:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Application of Second law of motion

PHYSICS

Watch in App

explore_more_icon

Explore more

Application of Second law of Motion

Standard IX Physics

Join BYJU'S Learning Program

CrossIcon