JEE (Based on NTA GuidelinesIIT Engg.) Advanced Physics: Questions 1 of 278
» Kinematics » Uniformly Accelerated Motion
Appeared in Year: 2011
MCQ▾
Question
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,