Motion in a Straight Line - Result Question 20
20. A particle moves in a straight line with a constant acceleration. It changes its velocity from to while passing through a distance in second. The value of is:
[2008]
(a) 10
(b) 1.8
(c) 12
(d) 9
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Answer:
Correct Answer: 20. (d)
Solution:
- (d) Initial velocity,
Final velocity,
Distance,
Let, acceleration
Using the formula,
or,
Now, using the relation,