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

Byju's Answer

Standard XII

Physics

Friction and Surface Area of the Object

A body of mas...

Question

A body of mass $2$ $k g$ is placed on a horizontal surface having coefficient of kinetic friction $0.4$ and coefficient of static friction $0.5$ . during the sliding motion of the body the frictional force is

8 N

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

10 N

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

20 N

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

2.5 N

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

Open in App

Solution

The correct option is D 8 N
During sliding, the body is in motion and thus kinetic friction acts on the body,
$f_{k} = μ_{k} m g = 0.4 \times 2 \times 10$
$f_{k} = 8 N$

Suggest Corrections

Similar questions

Q. A body of mass

2

k g

is placed on a horizontal surface having coefficient of kinetic friction

0.4

and coefficient of static friction

0.5

. If a horizontal force of

2.5

N

is applied on the body, the minimum force required to slide the body is( take

g = 10 m / s^{2}

) :

A body of mass $2$ kg is placed on a horizontal surface having kinetic friction $0.4$ and static friction $0.5$ . If the horizontal force applied on the body is $2.5$ N, the frictional force acting on the body will be $(g = 10 m / s^{2})$

Q. A body of mass 2 kg is placed on a horizontal surface having kinetic friction 0.4 and static friction 0.5 If force applied on body is 20 Newton find acceleration of body

Q. A body of mass

5 k g

is placed on a rough horizontal surface. If coefficients of static and kinetic friction are

0.5

and

0.4

respectively, then find the value of force of friction when external applied horizontal external force is (i)

15 N

(ii)

25 N

and (iii)

35 N

Q. A block of mass 3 kg is placed on the floor of coefficient of static friction is 0.4. The force of 3.5 N applied on the block. Calculate the force of friction and discuss the motion of the body.

Join BYJU'S Learning Program

A body of mass 2 kg is placed on a horizontal surface having coefficient of kinetic friction 0.4 and coefficient of static friction 0.5. during the sliding motion of the body the frictional force is

The correct option is D 8 NDuring sliding, the body is in motion and thus kinetic friction acts on the body,fk=μkmg=0.4×2×10fk=8 N

A body of mass $2$ $k g$ is placed on a horizontal surface having coefficient of kinetic friction $0.4$ and coefficient of static friction $0.5$ . during the sliding motion of the body the frictional force is

The correct option is D 8 N
During sliding, the body is in motion and thus kinetic friction acts on the body,
$f_{k} = μ_{k} m g = 0.4 \times 2 \times 10$
$f_{k} = 8 N$