An object moves at a constant speed along a circular path in horizontal $XY$ plane with centre at origin. When the object is at $x = -2\,m$ , its velocity is $-(4\,m/ s)\hat j$ . What is object's acceleration when it is at $y = 2\,m$ ?
An object moves at a constant speed along a circular path in horizontal $XY$ plane with centre at origin. When the object is at $x = -2\,m$ , its velocity is $-(4\,m/ s)\hat j$ . What is object's acceleration when it is at $y = 2\,m$ ?
- A
$-(8\,m/ s^2)\hat j$
- B
$-(8\,m/ s^2)\hat i$
- C
$-(4\,m/ s^2)\hat j$
- D
$(4\,m/ s^2)\hat i$
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