Explanation

The weight of a man in an elevator descending with an acceleration of 4.9 m/s² will become:

Let:

• Actual weight $W=mg$

• Acceleration due to gravity g=9.8m/s^2

• Acceleration of the elevator a=4.9m/s^2

When an elevator descends with acceleration $a$, the apparent weight becomes:

W′=m(g−a)

Substitute values:

W′=m(9.8−4.9)=m(4.9)
W′=1​/2×mg

So, the apparent weight becomes half of the actual weight.

Explanation

At the center of the Earth, gravitational forces from all directions cancel out.

Hence, the net gravitational force (and weight) is zero.

Explanation

 The moment of inertia of a solid sphere is (2/5)MR^2, where M is the mass and R is the radius.

This formula applies when the axis of rotation passes through the center of the sphere. 

Explanation

Displacement is a vector quantity because it has both magnitude and direction.

Distance, speed, and time are scalar quantities — they have only magnitude.

Explanation

Explanation

Attract متوجہ

Repel پیچھے ہٹانا

Explanation

Ameer Khusro is considered the first poet of Pashto and Urdu

The Full name of Amīr Khusrau : Ab'ul Hasan Yamīn ud-Dīn K͟husrau

Khusrau is credited for the invention of the sitar.

Amīr Khusrau lived under the Delhi Sultanate. 

Amīr Khusrau  Born: 1253, Patiyali

Amīr Khusrau  Died: on October 1325, in Delhi, India

The Place of burial of Amīr Khusrau: Hazrat Nizamuddin Aulia Dargah, New Delhi, India

while

Baba Farid is the first Punjabi poet.

Allama Iqbal is the National poet of Pakistan

Hassan Bin Sabit was the first poet of Islam.

Explanation

Behadur Shah Zafar was the last Mughal Emperor who was imprisoned by the English in Myanmar.

Bahadur Shah Zafar was the last Mughal emperor of India (reigned 1837–57).

He was a poet, musician, and calligrapher, more an aesthete than a political leader.

Bahadur Shah Zafar was born October 24, 1775, in Delhi, India

Bahadur Shah Zafar died November 7, 1862, in Rangoon [now Yangon], Myanmar.

Explanation

Explanation

Heer Ranjha was written by Waris Shah.

Heer Ranjha was written in 1766.

It tells the story of the love of Heer Sial and her lover Dheedo Ranjha.