A stone of mass m is thrown upwards at an angle φ. The moment the stone leaves your hand it has an acceleration (friction is negligible) equal to g

g sin (φ)

zero

The acceleration at the moment when the stone is left from the hand would be equal to:

a). g

As 'Acceleration' is defined as the pace by which the speed of movement of an object undergoes a change in association with time. In the given situation, the ball is thrown upwards but when the stone leaves the grip of the hand, its acceleration would be g(gravitational constant). The reason behind this is that the force exerted on it is primarily the weight of the stone(substance) itself.

Thus, option a is the correct answer.

Learn more about 'acceleration' here:

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The correct answer is:

= g

Explanation:

When the object leaves the hand it has a force acted on it mainly it’s weight.