When an object is oscillating in simple harmonic motion in the vertical direction, its maximum speed occurs when the object a) is at its highest point b) is at its lowest point c) is at the equilibrium point d) has the maximum net force exerted on it e) has a position equal to its amplitude

C) is at the equilibrium point

Explanation:

As we know that the equation of displacement of SHM executing object is given as

now for velocity of the particle we will have

now we will have

now if velocity is maximum then we will have

so at this situation we will have

now at this angle the value of

so the position must be mean position at which the particle is at equilibrium position

the results is a decrease in air temperature with an increase of altitude.

explanation: