A block of mass 2 kg rests on a plane in...

A block of mass 2 kg rests on a plane inclined at `30^@` with the horizontal. The coefficient of friction between the block and the surface is 0.7. Calculate the frictional force acting on the block.

9.8 N

`0.7 xx 9.8 sqrt3 N`

`98sqrt3`

`0.7 xx 9.8 N`.

Text Solution

Verified by Experts

Topper's Solved these Questions

Centre of mass
MODERN PUBLICATION|Exercise Exercise|30 Videos
Dynamics of Circular Motion
MODERN PUBLICATION|Exercise Exercise|81 Videos

Similar Questions

Explore conceptually related problems

A block of mass 15 kg is placed on a long trolley. The coefficient of friction between the block and the trolley is 0.18. The trolley accelerate from rest with 0.5 ms^-2 for 20 s and then moves with unifrom velocity. Discuss the motion of the block as viewd by an observer with the trolley.

In the figure, a body A of mass m slides on plane inclined at angle theta_1 to the horizontal and mu_1 is the coefficient of friction between A and the plane. A is connected by a light string passing over a fictionless pulley to another body B, also of mass m, sliding on a frictionless plane inclined at angle theta_2 to the horizontal which of the following statements are true ?

A block of mass 15 kg is placed on a long trolley. The coeffcient os static friction between the block and the trolley is 0.18. The trolley accelerates from rest with 0.5 m s^-2 for 20 s and then moves with uniform velocity. Discuss the motion of the block as viewed by:- an observer moving with the trolley.

A rectangular box lies on a rough inclined surface at theta . The co-efficient of friction between the surface and the box is mu. Let the mass of the box is m. What is the force acting on the box down the plane, if the angle of inclination of the plane is increased to alpha>theta ?

The rear side of a truck is open and a box of 40 kg mass is placed 5 m away from the open end as shown. The coefficient of friction between the box and the surface below its is 0.15. On a straight road, the truck starts from rest and accelerates with 2 ms^-2 . At what distance from the starting point does the box fall off the truck ?/ (Ignore the size of the box).

A block is in limiting equilibrium on an inclined plane of angle theeta ,Then ,the coefficient of friction is :

A block f mass M is held against a rough vertical wall by pressing it with a finger. If the coefficient of friction between the block and the wall is mu and the acceleration due to gravity is g. calculate the minimum force required to be applied by the finger to hold the block against the wall?

A suitcase us gently dropped on a coneyor belt moving at 3 m// .If th coefficientt of friction between the belt and the surface is 0.5 ,how far will the suitcase move on the belt before coming to rest?

A block of mass 1 kg is pushed up a surface inclined to horizontal at ang angle of 30^@ by a force of 10 N parallel to the inclined surface in the figure. shows . The coefficient of friction between bock and the incline is 0.1. If the block is pushed up by 10 m along the incline, calculate work done against force of friction

MODERN PUBLICATION-Competitive Exam Question-Exercise

If the resultant of all the external forces acting on a system of part...
Text Solution
|
Statement 1. It is easier to pull a heavy object than to push it on a ...
Text Solution
|
A block of mass 2 kg rests on a plane inclined at 30^@ with the horizo...
Text Solution
|
When a bicycle is in motion, the force of friction exerted by ground o...
Text Solution
|
A weight W rests on a rough horizontal plane. If the angle of friction...
Text Solution
|
What is the maximum value of the foce F, such that the block shown in ...
Text Solution
|
A long horizontal rod has a bead, which can slide along its length and...
Text Solution
|
A particle revolves round a circular path with auniform speed. The cen...
Text Solution
|
A car is moving along a circular horizontal track of radius 10 m with ...
Text Solution
|
The kinetic energy K of the particle moving in a circle of radius R de...
Text Solution
|
A stone tied to string of length l is whirled in a vertical circle wit...
Text Solution
|
A small block is shot into each of the four tracks as shown below. Eac...
Text Solution
|
The driver of a car suddenly sees a broad wall in front of him. He sho...
Text Solution
|
A piece of paper and an iron piece are dropped simultaneously from the...
Text Solution
|
If a particle is moving with a constant speed along a straight line, w...
Text Solution
|
Inertia is the property by virtue of which the body is unable to chang...
Text Solution
|
An athlete runs some distance before taking a long jump. This is becau...
Text Solution
|
Why does the horse rider fall forward when a running horse suddenly st...
Text Solution
|
A body moving with a constant speed on a horizontal surface does not h...
Text Solution
|
Two bodies of masses m1 and m2(m1>m2) and having momentum p1 and p2 mo...
Text Solution
|