NEET Physics Speed & Velocity MCQ Question
A car moves such that its position at time t is given by x(t) = 0.08t^3. What is the velocity of the car at t = 4.0 s?
84 m/s
6.0 m/s
0 m/s
15 m/s
Correct Answer
Detailed Explanation
The velocity is the derivative of position x(t) with respect to time t. At t = 4.0 s, this is dx/dt = 3 * 0.08 * (4.0)^2 = 3.84 m/s.
Found an issue with this question?
Related Questions
More from
A ball is thrown vertically upward with an initial velocity of 20 m/s. If the acceleration due to gravity is -10 m/s², what is the maximum height it r...
Assertion (A): For uniform motion, the acceleration is zero. | Reason (R): The velocity-time graph for uniform motion is a straight line parallel to t...
A car travels along a straight road with a uniform acceleration. If its initial velocity is 10 m/s and it reaches a velocity of 30 m/s in 5 seconds, w...