An object is thrown vertically upwards. At its maximum height, which of the following quantity becomes zero?

CONCEPT:

• Momentum - The momentum is defined as the product of the mass of the object to the velocity of the object and it is written as;

           p = mv

          here, p is the momentum, m is the mass, and v is the velocity.

• Potential energy - It is defined as the energy of an object of the object related to the other object and it is written as;

           W = mgh

           Here we have W as the potential energy, m as the mass, g as the acceleration due to gravity, and h as the height.

• Acceleration - Acceleration is defined as the rate of change of velocity per unit of time and it is written as;

            a = \(\frac{d\vec v}{dt}\)

• Force - Force is the push or the pull on an object and according to the second law of newton it is written as;

           F = ma

           Here we have m as the mass and "a"  as the acceleration.

EXPLANATION:

At the maximum, the velocity is zero and acceleration is the constant.

When velocity is zero, the momentum is,

p = mv

⇒ p = m (0)

⇒ p = 0

Hence, option 1) is the correct answer.