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Answer to Question #21471 in Mechanics | Relativity for Saif Chachar

Question #21471
Explain the circumstances in which the velocity "v" and acceleration "a" of car are :
(i) Parallel (ii) Anti-parallel (iii) Perpendicular to each other (iv) "v" is zero but "a" is not zero
(v) "a" is zero but "v" is not zero.
Expert's answer
(i) Parallel.
If a car accelerates the velocity "v" and acceleration "a" of car are parallel.

(ii) Anti-parallel.
If the car slows the velocity "v" and acceleration "a" of car are anti-parallel.

(iii) Perpendicular to each other.
If the car is moving along the circumference the velocity "v" and acceleration "a" of car are perpendicular to each other.

(iv) "v" is zero but "a"& is not zero.
If the car starts from rest "v" is zero but "a"& is not zero.

(v) "a" is zero but "v" is not zero.
If the car is moving uniformly "a" is zero but "v" is not zero.

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Comments

Assignment Expert
24.07.14, 14:03

Dear Alex Brown,
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alex brown
24.07.14, 00:25

very muuuucccchhhh helpful for me... thankuuu

Assignment Expert
29.01.13, 19:04

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Saif Chachar
29.01.13, 16:59

Great !!!!!!!!!!!!

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