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QAIPMT-2008-Ph-2240: NEET 2008 Physics - Class 11 AIPMT-2008-Ph-2240 Solution: A particle moves in a straight line with a constant…
A particle moves in a straight line with a constant acceleration. It changes its velocity from to while passing through a distance 135 m in t second. The value of t is
Multiple Choice Options
- A 12
- B 9
- C 10
- D 1.8
Step-by-Step Verified Solution
v 2 = u 2 + 2 a s
_ a = v 2 _ u 2 2 s
= ( 20 ) 2 _ ( 10 ) 2 2 _ 135
= 400 _ 100 270
= 300 270
= 10 9 m/s 2
v = u + a t
_ t = v _ u a
= 20 _ 10 10 9
= 10 10 9 = 9 m/s