A small block of mass m is kept on a rou...

A small block of mass m is kept on a rough inclined surface of inclination `theta` fixed in an elevator. The elevator goes up with a uniform velocity v and te block does not slide n te wedge. The work done by the force of friction on the block in time t will be

Zero

mgvt `cos^(2)theta`

mgvt `sin^(2)theta`

mgvt `sin 2theta`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

WORK, ENERGY AND POWER
PHYSICS GALAXY - ASHISH ARORA|Exercise unsolvedMCQ|78 Videos
WORK, ENERGY AND POWER
PHYSICS GALAXY - ASHISH ARORA|Exercise unsolved|1 Videos
WORK, ENERGY AND POWER
PHYSICS GALAXY - ASHISH ARORA|Exercise Discussion Question|31 Videos
RIGID BODIES AND ROTATIONAL MOTION
PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical|63 Videos

Similar Questions

Explore conceptually related problems

A small block of mass m is kept on a rough inclined surface of inclination theta in an elevator.Th elevator goes up with a uniform velocity v and the block does not slide on the wedge.The work done by the force of friction on the block in time t as seen by the observer on the inclined plane will be

A small block of mass m is kept on a rough inclined surface of inclination theta fixed in a car. The car moves with a uniform velocity v and the block does not slide on the wedge. The work done by the force of friction on the block in time t will be

A small block of mass 1 kg is kept on a rough inclined wedge of inclination 45^@ fixed in an elevator. The elevator goes up with a uniform velocity v=2 m//s and the block done not slide on the wedge. Find the work done by the of friction on the block in 1s . (g=10 m//s^(2))

A small block of mass 2kg is kept on a rough inclined surface of inclination theta=30^@ fixed in a lift. The lift goes up with a uniform speed of 1ms^-1 and the block does not slide relative to the inclined surface. The work done by the force of friction on the block in a time interval of 2s is

A block of mass m is at rest over the rough surface of the fixed wedge.

A block of mass m is kept on an inclined plane of mass 2m and inclination alpha to horizontal. If the whole system is accelerated such that the block does not slip on the wedge then :

A block of mass 5 kg is at rest on a rough inclined surface. If angle of inclination of plane is 60^(@) , then force applied by it on block is

A cubical block of mass M and edge a slides down a rougg inclined plane of inclination theta with a uniform velocity. The torque of the normal force on the block about its centre has magnitude.

PHYSICS GALAXY - ASHISH ARORA-WORK, ENERGY AND POWER-MCQ

A ball of mass 1 kg moves inside a smooth fixed spherical shell of ra...
Text Solution
|
Two equal masses are attached to the two ends of a spring of spring co...
Text Solution
|
A small block of mass m is kept on a rough inclined surface of inclina...
Text Solution
|
A particle of mass m(1) is fastened to one end of a string and one of ...
Text Solution
|
A partical is realeased from the top of two inclined rought surface of...
Text Solution
|
A 15 gm ball is shot from a spring whose spring has a force constant o...
Text Solution
|
What is pumped from a depth of 10 m and delivered through a pipe of cr...
Text Solution
|
System shown in figure is released from rest . Pulley and spring is ma...
Text Solution
|
A particle of mass m is projected with velocity u at an angle alpha wi...
Text Solution
|
Force acting on a particale is (2hat(i)+3hat(j))N. Work done by this f...
Text Solution
|
A particle is given an initial speed u inside a smooth spherical shell...
Text Solution
|
Power supplied to a mass 2 kg varies with time as P = (3t^(2))/(2) wat...
Text Solution
|
An ice cube of size a = 10 cm is floating in a tank (base area A = 50 ...
Text Solution
|
A aprtical moves on a rough horizontal ground with same initial veloci...
Text Solution
|
Two particles 1 and 2 are allowed to descend on the two frictionless c...
Text Solution
|
An object of mass m slides down a hill of arbitrary shape and after tr...
Text Solution
|
A block of mass m slides down a rough inclined plane of inclination th...
Text Solution
|
A particle is displaced from x=-6 m to x=+6 m A force F acting on the ...
Text Solution
|
A force F acting on a body depends on its displacement S as FpropS^(-1...
Text Solution
|
A particle is released from height H. At cartain height from the groun...
Text Solution
|