Home
Class 12
PHYSICS
In fig, the acceleration of A is vec(a)(...

In fig, the acceleration of A is `vec(a)_(A)=15hat(i)+15hat(j)`. Then the acceleration of B is (A remains in constact with B)

A

`6 hat(i)`

B

`- 15 hat (i)`

C

`- 10 hat (i)`

D

`- 5 hat (i)`

Text Solution

Verified by Experts

The correct Answer is:
D

From wedge constant
`(a_(A))_(bot)=(a_(B))_(bot)`
`a_(AX) cos 53^(@) -a_(AY) cos 37^(@) = a_(B) cos 53^(@)`
`a_(B) = -5 m//s rArr vec(a)_(B) = -5 hat(i)`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • DAILY PRACTICE PROBLEM

    RESONANCE ENGLISH|Exercise DPP No.39|9 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE ENGLISH|Exercise DPP No.40|20 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE ENGLISH|Exercise DPP No.37|9 Videos

  • CURRENT ELECTRICITY

    RESONANCE ENGLISH|Exercise High Level Problems (HIP)|19 Videos

  • ELECTRO MAGNETIC WAVES

    RESONANCE ENGLISH|Exercise Exercise 3|27 Videos

Similar Questions

Explore conceptually related problems

A charged particle moving in a magnetic field vec(B) = hat(i) - hat(j) tesla, has an acceleration of 2 hat(i) + alpha hat(j) at some instant. Find the value of alpha

In the figure shown the velocity of A with respect to ground is (20hat(i) + 15hat(j)) m//s , then what will be the magnitude of velocity of the wedge 'B' with respect to ground frame. (A remains in contact with B)

Knowledge Check

  • If vec(a) = 2 hat(i) + hat(j) + 2hat(k) and vec(b) = 5hat(i)- 3 hat(j) + hat(k) , then the projection of vec(b) on vec(a) is

    A
    3
    B
    4
    C
    5
    D
    1

    • Similar Questions

    Explore conceptually related problems

    The compenent of vec(A)=hat(i)+hat(j)+5hat(k) perpendicular to vec(B)=3hat(i)+4hat(j) is

    A point charge +q_0 is projected in a magnetic field vec B= (hat i+2 hat j-3hat k) . If acceleration of the particle is vec a= (2 hat i + b hat j + hat k) then value of b will be

    A charged particle has acceleration vec a = 2 hat i + x hat j in a megnetic field vec B = - 3 hat i + 2 hat j - 4 hat k. Find the value of x.

    Find the angle between vec(A) = hat(i) + 2hat(j) - hat(k) and vec(B) = - hat(i) + hat(j) - 2hat(k)

    Which of the following is not true ? If vec(A) = 3hat(i) + 4hat(j) and vec(B) = 6hat(i) + 8hat(j) where A and B are the magnitude of vec(A) and vec(B) ?

    let vec a = 2hat i +3hat j and vec b = hat i +4hat j then find projection of vec a on vec b

    If vec(A)=2hat(i)+3hat(j)-hat(k) and vec(B)=-hat(i)+3hat(j)+4hat(k) , then find the projection of vec(A) on vec(B) .

    Home
    Profile