141873 A balloon is rising vertically up with a velocity of \(29 \mathrm{~ms}^{-1}\). A stone is dropped from it and it reaches the ground in \(10 \mathrm{~s}\). The height of the balloon when the stone was dropped from it is \(\left(\mathrm{g}=9.8 \mathrm{~ms}^{-2}\right)\)

141874 A ball is thrown vertically upward with speed \(70 \mathrm{~m} / \mathrm{s}\). After \(1 \mathrm{~s}\), another ball is dropped from a height \(185 \mathrm{~m}\) in the same vertical line. At what height the balls collide?

141875 A ball is dropped from the top of the building \(100 \mathrm{~m}\) high. Simultaneously, another ball is thrown upwards from the bottom of the building with such a velocity that the balls collide exactly mid-way. What is the speed in \(\mathrm{m}\) \(\mathbf{s}^{-1}\) with which the second ball is thrown? (Take \(g=10 \mathrm{~m} \mathrm{~s}^{-2}\) )

141876 A man of mass \(60 \mathrm{~kg}\) records his wt. on a weighing machine placed inside a lift. The ratio of wts. of man recorded when lift ascending up with a uniform speed of \(2 \mathrm{~m} / \mathrm{s}\) to when it is descending down with a uniform speed of \(4 \mathrm{~m} / \mathrm{s}\) will be

141873 A balloon is rising vertically up with a velocity of \(29 \mathrm{~ms}^{-1}\). A stone is dropped from it and it reaches the ground in \(10 \mathrm{~s}\). The height of the balloon when the stone was dropped from it is \(\left(\mathrm{g}=9.8 \mathrm{~ms}^{-2}\right)\)

141874 A ball is thrown vertically upward with speed \(70 \mathrm{~m} / \mathrm{s}\). After \(1 \mathrm{~s}\), another ball is dropped from a height \(185 \mathrm{~m}\) in the same vertical line. At what height the balls collide?

141875 A ball is dropped from the top of the building \(100 \mathrm{~m}\) high. Simultaneously, another ball is thrown upwards from the bottom of the building with such a velocity that the balls collide exactly mid-way. What is the speed in \(\mathrm{m}\) \(\mathbf{s}^{-1}\) with which the second ball is thrown? (Take \(g=10 \mathrm{~m} \mathrm{~s}^{-2}\) )

141876 A man of mass \(60 \mathrm{~kg}\) records his wt. on a weighing machine placed inside a lift. The ratio of wts. of man recorded when lift ascending up with a uniform speed of \(2 \mathrm{~m} / \mathrm{s}\) to when it is descending down with a uniform speed of \(4 \mathrm{~m} / \mathrm{s}\) will be

141873 A balloon is rising vertically up with a velocity of \(29 \mathrm{~ms}^{-1}\). A stone is dropped from it and it reaches the ground in \(10 \mathrm{~s}\). The height of the balloon when the stone was dropped from it is \(\left(\mathrm{g}=9.8 \mathrm{~ms}^{-2}\right)\)

141874 A ball is thrown vertically upward with speed \(70 \mathrm{~m} / \mathrm{s}\). After \(1 \mathrm{~s}\), another ball is dropped from a height \(185 \mathrm{~m}\) in the same vertical line. At what height the balls collide?

141875 A ball is dropped from the top of the building \(100 \mathrm{~m}\) high. Simultaneously, another ball is thrown upwards from the bottom of the building with such a velocity that the balls collide exactly mid-way. What is the speed in \(\mathrm{m}\) \(\mathbf{s}^{-1}\) with which the second ball is thrown? (Take \(g=10 \mathrm{~m} \mathrm{~s}^{-2}\) )

141876 A man of mass \(60 \mathrm{~kg}\) records his wt. on a weighing machine placed inside a lift. The ratio of wts. of man recorded when lift ascending up with a uniform speed of \(2 \mathrm{~m} / \mathrm{s}\) to when it is descending down with a uniform speed of \(4 \mathrm{~m} / \mathrm{s}\) will be

141873 A balloon is rising vertically up with a velocity of \(29 \mathrm{~ms}^{-1}\). A stone is dropped from it and it reaches the ground in \(10 \mathrm{~s}\). The height of the balloon when the stone was dropped from it is \(\left(\mathrm{g}=9.8 \mathrm{~ms}^{-2}\right)\)

141874 A ball is thrown vertically upward with speed \(70 \mathrm{~m} / \mathrm{s}\). After \(1 \mathrm{~s}\), another ball is dropped from a height \(185 \mathrm{~m}\) in the same vertical line. At what height the balls collide?

141875 A ball is dropped from the top of the building \(100 \mathrm{~m}\) high. Simultaneously, another ball is thrown upwards from the bottom of the building with such a velocity that the balls collide exactly mid-way. What is the speed in \(\mathrm{m}\) \(\mathbf{s}^{-1}\) with which the second ball is thrown? (Take \(g=10 \mathrm{~m} \mathrm{~s}^{-2}\) )

141876 A man of mass \(60 \mathrm{~kg}\) records his wt. on a weighing machine placed inside a lift. The ratio of wts. of man recorded when lift ascending up with a uniform speed of \(2 \mathrm{~m} / \mathrm{s}\) to when it is descending down with a uniform speed of \(4 \mathrm{~m} / \mathrm{s}\) will be