Q.

Angle between velocity and acceleration vectors in the following cases

List – IList – I I
a) For vertically projected bodye) 900
b) For freely falling  bodyf) Changes from  point to point
c) For projectileg) Zero
d) In uniform circular motion

 h) 1800

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a

a  f ;   b  g ;   c  e ;   d  h

b

a  h ;   b  g ;   c  e ;   d  f

c

a  h ;   b  g ;   c  f ;   d  e

d

a  f ;   b  g ;   c  h ;   d  e

answer is A.

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Detailed Solution

Angle between velocity and acceleration vectors is 1800 for vertically projected body, zero for freely falling  body, 900 in uniform circular motion and changes from point to point for projectile.

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