Home
Class 11
PHYSICS
Two fixed frictionless inclined planes m...

Two fixed frictionless inclined planes making an angles `30^(0)` and `60^(0)` with the vertical are shown in the Two blocks `A` and `B` are placed on the two planes. What is the relative vertical accelration of A with respect to `B`?
.

A

`4.9 ms^(-2)` in verticla direction

B

`4.9 ms^(-2)`in horizontal direction

C

`9.8 ms^(-2)` in verticla direction

D

zero

Text Solution

Verified by Experts

The correct Answer is:
A
Vertical component of acceleration of `A`
`a_(1) = (g sin theta). sin theta`
`= g sin 60^(@). sin 60^(@) = g.(3)/(4)`
`a_(2) = gsin 30^(@).sin 30^(@) = g(1)/(4)`
`:. (a_(AB))_(_|_) = (3g)/(4) - (g)/(4) = (g)/(2) = 4.9 m//s^(2)`
Promotional Banner

Similar Questions

Explore conceptually related problems

Two fixed frictionless inclined plane making angles 30^(@) and 60^(@) with the vertical are shown in the figure. Two blocks A and B are placed on the two planes What is the relative vertical acceleration of A with respect to B ?

Two blocks 4 kg and 2 kg are sliding down an incline plane as shown in figure. The acceleration of 2 kg block is.

Two partical start together from a point O and slide down along straight smooth wire inclined at 30^(@) and 60^(@) to the vertical plane and on the same slide of vertical through O . The relative acceleration of second with respect to first will be of magnitude

Two blocks 4 kg and 2 kg are sliding down an incline plane as shown in fig The acceleration of 2 kg block is:

An ice cube is kept on an inclined plane of angle 30^(@) . The coefficient to kinetic friction between the block and incline plane is 1//sqrt(3) . What is the acceleration of the block ?

A block of mass m is released from the top of fixed inclined smooth plane. if theta is the angle of inclination then vertical accelertion of block is

A block of mass 0.5 kg is kept on a rough inclined plane making an angle of 30^(@) with horizontal. What power will be required to move the block up the plane (along the plane) with a velocity of 5m/s ? (Take m = 0.2 between block and plane)

A person pushes a block of mass 4 kg up a frictionless inclined plane 10 m long and that makes an angle of 30^@ with the horizontal . Then the work done is