In a vacuum, all objects fall at the same rate due to gravity, irrespective of their mass or density, meaning they will reach the ground simultaneously if released from the same height.
An iron ball and a wooden ball of the same radius are released from a height 'H' in vacuum. The time taken to reach the ground will be–
Asked in POST GRADUATE TEACHER (PGT) 2018 · Topic: Motion under Gravity (Equations of motion for objects under free fall)
More Physics questions
- Two objects of different masses falling freely near the surface of the Moon would
- An object is dropped from a height onto the floor. Which one of the following remains uniform as it falls ?
- The acceleration due to gravity at the Earth's surface depends on
- Which of the following statement(s) about the freely falling objects is/are FALSE? Freely falling objects are the objects falling from a height towards the earth under gravitational force of the earth. The acceleration of a body falling freely towards the earth depends on the mass of the body. If an object is dropped freely from a height, its initial velocity 'u' is zero and if an object is thrown vertically upwards, its final velocity 'v' becomes zero. Choose the correct answer from the options given below:
- If g is the acceleration due to gravity and R is the radius of the earth, then escape velocity is given by the relation
- In vaccum all objects fall with
- Which one of the following statements for an object falling freely under the influence of gravity is correct?
- The velocity below which a rocket will not escape earth's gravitational pull is - 12 km/s
