Physics-Speed & Velocity
NEET Physics Speed & Velocity MCQ Question
Type: MCQ-numerical-Medium-Class 11
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?
A
84 m/s
B
6.0 m/s
C
0 m/s
D
15 m/s
Correct Answer
Option A
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.
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