JEE (Based on NTA Guidelines-IIT Engg.) Advanced Physics: Questions 1 of 279
Appeared in Year: 2011
Question MCQ▾
An object, moving with a speed of is decelerated at a rate given by:
Where, is the instantaneous speed. The time taken by the object, to come to rest, would be: (AIEEE)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Answer
a.
Explanation
According to question, an object decelerated at a rate,
Integrating the equation (1) ,
At
Substitute in equation (2) ,
The time taken by the object to come to rest is,
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