141827 A ball is thrown vertically downward with a velocity of \(20 \mathrm{~m} / \mathrm{s}\) from the top of a tower. It hits the ground after some time with a velocity of \(80 \mathrm{~m} / \mathrm{s}\). The height of the tower is (g= \(10 \mathrm{~m} / \mathrm{s}^{2}\)

141828 A stone thrown vertically upwards with an initial velocity ' \(v\) ' from the top of a tower reaches the ground with velocity \(3 \mathrm{v}\). The height of tower is

141829 A stone falls freely such that the distance covered by it in the last second of its motion is equal to the distance covered by it in the first 5 s. It is in air for .......s.

141832 A ball is allowed to free fall from the top of a \(200 \mathrm{~m}\) tall tower. Simultaneously another ball is through vertically upwards at a velocity 50 \(\mathrm{m} / \mathrm{s}\). The balls will meet at a height of

141827 A ball is thrown vertically downward with a velocity of \(20 \mathrm{~m} / \mathrm{s}\) from the top of a tower. It hits the ground after some time with a velocity of \(80 \mathrm{~m} / \mathrm{s}\). The height of the tower is (g= \(10 \mathrm{~m} / \mathrm{s}^{2}\)

141828 A stone thrown vertically upwards with an initial velocity ' \(v\) ' from the top of a tower reaches the ground with velocity \(3 \mathrm{v}\). The height of tower is

141829 A stone falls freely such that the distance covered by it in the last second of its motion is equal to the distance covered by it in the first 5 s. It is in air for .......s.

141832 A ball is allowed to free fall from the top of a \(200 \mathrm{~m}\) tall tower. Simultaneously another ball is through vertically upwards at a velocity 50 \(\mathrm{m} / \mathrm{s}\). The balls will meet at a height of

141827 A ball is thrown vertically downward with a velocity of \(20 \mathrm{~m} / \mathrm{s}\) from the top of a tower. It hits the ground after some time with a velocity of \(80 \mathrm{~m} / \mathrm{s}\). The height of the tower is (g= \(10 \mathrm{~m} / \mathrm{s}^{2}\)

141828 A stone thrown vertically upwards with an initial velocity ' \(v\) ' from the top of a tower reaches the ground with velocity \(3 \mathrm{v}\). The height of tower is

141829 A stone falls freely such that the distance covered by it in the last second of its motion is equal to the distance covered by it in the first 5 s. It is in air for .......s.

141832 A ball is allowed to free fall from the top of a \(200 \mathrm{~m}\) tall tower. Simultaneously another ball is through vertically upwards at a velocity 50 \(\mathrm{m} / \mathrm{s}\). The balls will meet at a height of

141827 A ball is thrown vertically downward with a velocity of \(20 \mathrm{~m} / \mathrm{s}\) from the top of a tower. It hits the ground after some time with a velocity of \(80 \mathrm{~m} / \mathrm{s}\). The height of the tower is (g= \(10 \mathrm{~m} / \mathrm{s}^{2}\)

141828 A stone thrown vertically upwards with an initial velocity ' \(v\) ' from the top of a tower reaches the ground with velocity \(3 \mathrm{v}\). The height of tower is

141829 A stone falls freely such that the distance covered by it in the last second of its motion is equal to the distance covered by it in the first 5 s. It is in air for .......s.

141832 A ball is allowed to free fall from the top of a \(200 \mathrm{~m}\) tall tower. Simultaneously another ball is through vertically upwards at a velocity 50 \(\mathrm{m} / \mathrm{s}\). The balls will meet at a height of