Question

The acceleration of a body thrown up is numerically the same as the acceleration of a downward falling body, but opposite in sign.

• A. True
• B. False

Answer 1

The correct option is A True

Answer is A.
We know that the force of gravity does not depend on the mass of the object or the speed of the object, but depends on the mass of the earth and the distance of the object from the center of the earth. Therefore, even the thrown up bodies are being continuously attracted by the earth. But since the object is being thrown up and the force of attraction of the earth on the object acts downwards, therefore, the object will slow down continuously until it comes to rest.
Therefore, the acceleration of a body thrown vertically upwards will be numerically same as the acceleration of the falling body but opposite in sign. That is, the body will slow down in its speed by one second until it stops or its velocity becomes zero. It will then have free fall.