An object is thrown vertically upwards. At its maximum height, which of the following quantity becomes zero?
- Momentum
- Potential Energy
- Acceleration
- Force
The Correct Option is A
Solution and Explanation
At topmost position, v = 0 ⇒ momentum = 0
The momentum of an object is given by the product of its mass and velocity. At the maximum height, the velocity becomes zero (momentarily), and if the mass remains constant, the momentum will indeed become zero at that point.
Therefore, in the context of the object thrown vertically upwards, the correct option is (A): Momentum.
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Concepts Used:
Momentum
It can be defined as "mass in motion." All objects have mass; so if an object is moving, then it is called as momentum.
the momentum of an object is the product of mass of the object and the velocity of the object.
Momentum = mass • velocity
The above equation can be rewritten as
p = m • v
where m is the mass and v is the velocity.
Momentum is a vector quantity and the direction of the of the vector is the same as the direction that an object.