A marble travelling at $100cm/s$ rolls of the edge of a level table. It hits the floor $30cm$ away from the spot directly below the edge of the table. Height of the table is ($g=9.8m/s^2$)

Q. A marble with speed 20 cm/s rolls off the edge of a table 80 cm high. How far horizontally from the table edge does the marble strike the floor? (answer in $\text{cm}$ and take $g=10m/s^2$)

Q. A marble with speed 20 cm/s rolls off the edge of a table 80 cm high. How far horizontally from the table edge does the marble strike the floor? (answer in $\text{cm}$ and take $g=10m/s^2$)

Q. A ball rolls off the edge of a horizontal table top 4m high. If it strikes the floor at a point 5 m horizontally away from the edge of the table, what was its speed at the instant it left the table.

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Q. A ball is rolled off the edge of a horizontal table at a speed of 4 m/s. It hits the ground after 0.4 second. Which statement given below is true(Take $g=10m/s^2$)