A block of mass 4kg is placed in contact...

A block of mass 4kg is placed in contact with the front vertical surface of a lorry. The coefficient of friction between the vertical surface and block is 0.8. The lorry is moving with an acceleration of 15 `m//s^2 (g = 10ms^(-2))`. The force of friction between lorry and block is

48 N

24 N

40 N

Zero

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

LAWS OF MOTION
AAKASH SERIES|Exercise PRACTICE EXERCISE|106 Videos
LAWS OF MOTION
AAKASH SERIES|Exercise EXERCISE - I|157 Videos
GEOMETRICAL OPTICS
AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL-II PRACTICE SHEET (ADVANCED) INTEGER TYPE QUESTIONS)|10 Videos
LOGIC GATES
AAKASH SERIES|Exercise Exercise (Very Short Answer)|10 Videos

Similar Questions

Explore conceptually related problems

A block of mass 1 kg is placed on a truck which accelerates with acceleration 5ms^(-2) . The coefficient of static friction between the block and truck is 0.6. The frictional force acting on the block is

A block of mass 1kg lies on a horizontal surface in a truck. The coefficeint of friction between the block and surface is 0.5. If the acceleration of the truck is 6ms^(-2) the acceleration of the block relative to ground is

A block of mass m is moving on a rough horizontal surface. mu is the coefficient of kinetic friction between the block and the surface. What is the net force exerted by the surface on the block?

A block of mass 50 kg slides over a horizontal distance of 1m. If the coefficient of friction between their surface is 0.2, then work done against friction is (take g = 9.8 m//s^(2) ) :

If coeffiecient of friction between the block of mass 2kg and table is 0.4 then out acceleration of the system and tension in the string. (g=10m//s^(2))

A force of 100 N is applied on a block of mass 3 kg as shown in figure. The coefficient of friction between the surface and the block is 1/4 .Then the friction force acting on the block is

A block of mass 2kg lying on ice when given a velocity of 6ms^(-1) is stopped by friction in 5s. The coefficient of friction between the block and ice is (g=10 ms^(-2) )

A block of mass 15kg is placed on a long trolley. The cofficient of fricition between the block and trolley is 0.18. The trolley accelerates from rest with 0.5m//s^(2) for 20s. then what is the friction force:-

A block of mass m is pulled by a force of constant power P placed on a rough horizontal plane. The friction coefficient between the block and the surface is mu . Then

A block of mass m is placed behind in contact with vertical side of M as shown in the figure. The coefficient of static friction between m and M in mu . The least horizontal force with which m can be pushed so that the two blocks move together is (neglect friction between M and ground).

AAKASH SERIES-LAWS OF MOTION-EXERCISE - II

A person holds a block weighing 2kg between his hands & keeps it from ...
Text Solution
|
An eraser weighing 2N is pressed against the black board with a force ...
Text Solution
|
A block of mass 4kg is placed in contact with the front vertical surfa...
Text Solution
|
A book of weight 20 N is pressed between two hands and each hand exert...
Text Solution
|
A man of mass 40 kg is at rest between the walls as shown in the figur...
Text Solution
|
A wooden block is placed on an inclined plane. The block just begins t...
Text Solution
|
A block of mass 2 kg rests on a rough inclined plane making an angle o...
Text Solution
|
A body takes 1(1/3) times as much time to slide down a rough inclined ...
Text Solution
|
A block of mass 2kg is lying on a rough inclined plane. The force need...
Text Solution
|
A block sliding down a rough 45° inclined plane has half the velocity ...
Text Solution
|
A block is pushed up a rough inclined plane of 45°. If the time of des...
Text Solution
|
A rod AB of length 2L and mass m is lying on a horizontal frictionless...
Text Solution
|
A body is allowed to slide from the top along a smooth inclined plane ...
Text Solution
|
A particle is projected at an angle theta =30^@ with the horizontal, w...
Text Solution
|
A 30 kg block is to be moved up an inclined plane at an anglue 30° to ...
Text Solution
|
An engine of one metric ton is going up an inclined plane, 1 in 2 at t...
Text Solution
|
The minimum force required to move a body up an inclined plane is thre...
Text Solution
|
A body of mass 10kg is on a rough inclined plane having an inclination...
Text Solution
|
A block of wood of mass 0.5 kg is placed on a plane making 30° with th...
Text Solution
|
A body of mass 'm' slides down a smooth inclined plane having an incli...
Text Solution
|