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# a body of mass 2kg moving on a horizontal surface with an initial velocity of 4m/s

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## A body of mass 2kg moving on a horizontal surface with an initial velocity of 4ms ^

Click here👆to get an answer to your question ✍️ A body of mass 2kg moving on a horizontal surface with an initial velocity of 4ms ^ - ^1 comes to rest in 2 seconds. If one wants to keep the body moving on the same surface with the velocity of 4 ms ^ - ^1 , the force required is :

A body of mass 2kg moving on a horizontal surface with an initial velocity of 4ms

Question − 1

comes to rest in 2 seconds. If one wants to keep the body moving on the same surface with the velocity of 4 ms

− 1

, the force required is :

A

B

C

D

## 16 N

Hard Open in App

Updated on : 2022-09-05

Solution Verified by Toppr

Correct option is B)

From above figure

A→B

u = 4m/s             v=0            t=2sec            a=?

v=u+at 0=4+a(2) a=−2m/s 2 so, force = ma =2×2=4N

Hence (B) is the correct answer

114 18

स्रोत : www.toppr.com

## A body of mass 2 kg moving on a horizontal surface with an initial velocity of 4 m / sec comes to rest after 2 sec. If one wants to keep this body moving on the same surface with a velocity of 4 m / sec, the force required isA. 2 NB. 4 NC. 8 ND. Zero

A body of mass 2 kg moving on a horizontal surface with an initial velocity of 4 m / sec comes to rest after 2 sec. If one wants to keep this body moving on the same surface with a velocity of 4 m / sec, the force required isA. 2 NB. 4 NC. 8 ND. Zero

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A body of mass 2 kg moving on a horizontal surface with an initial velocity of 4 m / sec comes to rest after 2 sec. If one wants to keep this body moving on the same surface with a velocity of 4 m / sec, the force required isA. 2 NB. 4 NC. 8 ND. Zero

Question

A body of mass 2 kg moving on a horizontal surface with an initial velocity of 4 m/sec comes to rest after 2 sec. If one wants to keep this body moving on the same surface with a velocity of 4 m/sec, the force required is

A 8 N B 4 N C Zero D 2 N Open in App Solution

The correct option is B

4 N

u=4 m/s, v=0, t= 2sec

v=u+at ⇒ 0=4+2a ⇒ a = − 2 m / s 2 ∴

Retarding force = ma =2

× 2= 4 N

This force opposes the motion. If the same amount of force is applied in forward direction, then the body will move with constant velocity.

Suggest Corrections 19

SIMILAR QUESTIONS

Q. A body of mass

2 k g

moving on horizontal surface with an initial velocity of

4 m / s e c comes to rest after 2 s e c

. If one wants to keep this body moving on the same surface with a velocity of

4 m / s e c

, then the force required is:-

Q. A body of mass

2 k g

moving on a horizontal surface with an initial velocity of

4 m / s comes to rest after 2 s

. If one wants to keep this body moving on the same surface with a velocity of

4 m / s

, the force required is:

Q. A body of mass

2 k g

moving on a horizontal surface with an initial velocity of

4 m s − 1

, comes to rest after

2 s

. If one wants to keep this body moving on the same surface with a velocity of

4 m s − 1

, the force required is:

Q. A body of mass 2 kg moving on a horizontal surface with an initial velocity of 4 m/s comes to rest after 2 s. If one wants to keep this body moving on the same surface with a velocity of 4 m/s, the force required is:Q. A body of mass

5 k g

moving on a horizontal surface with a velocity of

10 m s − 1 comes to rest in 2 s

. The force required to make this body move with a velocity of

10 m s − 1

on the same surface is:

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स्रोत : byjus.com

## A body of mass 2kg moving on a horizontal surface with an initial velocity of 4 ms^(

F=2xx(4)/(2)=4NA body of mass 2kg moving on a horizontal surface with an initial velocity of 4 ms^(-1) comes to rest after 2 second. If one wants to keep this body moving on the same surface with a velocity of 4 ms^(-1) the force required is

Home > English > Class 12 > Physics > Chapter >

Newtons Laws Of Motion

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A body of mass 2kg moving on a...

A body of mass 2kg 2kg

moving on a horizontal surface with an initial velocity of

4m s −1 4ms-1 comes to rest after 2 2

second. If one wants to keep this body moving on the same surface with a velocity of

4m s −1 4ms-1

the force required is

Updated On: 27-06-2022

00 : 30

Text Solution Open Answer in App A 8N B 4N C Zero D 2 N Answer

Solution F=2× 4 2 =4N F=2×42=4N

Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.

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