Question

whan an object is thrown vertically upwards,at the highest point,the body acceleration is equal to________​

Answer 1

Answer:

When object is thrown vertically upwards, the highest point the acceleration of the body is equal to ACCELERATION DUE TO GRAVITY.

But why?

Let's assume that an object has been thrown from the ground vertically upwards with the initial velocity of 'u' m/s.

Now, the max height reached will be h = u²/2g.

At the maximum height, the final velocity of the object will be zero.

However, object will still experience the pull of earth's gravity downwards (i.e towards earth). So, the the acceleration of that object will be equal to the acceleration due to gravity.

So, even at the highest point, the acceleration will be 9.8 m/s².

Answer 2

Answer:

When an object is thrown vertically upwards, at the highest point the acceleration of the body is equal to the acceleration due to gravity.

Explanation:

• The acceleration due to gravity is the acceleration of the body when an object is thrown vertically upwards.
• It can be understood by the following conditions:
• Assume that an object was hurled vertically up from the ground with an initial velocity of "u" m/s.
• Now, h = u²/2g will be the maximum height attained.
• At the greatest height, the terminal velocity of the object will be zero.
• However, the gravitational attraction of the earth will still draw the object downward (i.e towards the earth). Therefore, the object's acceleration will be equal to the acceleration caused by gravity.
• Therefore, the acceleration will be 9.8 m/s² even at the maximum point.

Thus, When an object is thrown vertically upwards, at the highest point the acceleration of the body is equal to the acceleration due to gravity.

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