Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Medium-Class 11
A car's position as a function of time is given by x(t) = 0.08t^3. What is the instantaneous velocity of the car at t = 4.0 s?
A
84 m/s
B
80 m/s
C
6.40 m/s
D
7.20 m/s
Correct Answer
Option A
Detailed Explanation
The instantaneous velocity is the derivative of the position function with respect to time. At t = 4.0 s, dx/dt = 0.08 * 3 * (4.0)^2 = 3.84 m/s.
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