A ball is thrown downwards with a speed of `20 ms^(–1)` from top of a building 150m high and simultaneously another ball is thrown vertically upwards with a speed of `30 ms^(–1)` from the foot of the building. Find the time after which both the balls will meet - `(g = 10 ms^(–2))`

A ball is thrown downwards with a speed of 20 m s^(-1) , from the top of a building 150 m high and simultaneously another ball is thrown vertically upwards with a speed of 30 m s^(-1) from the foot to the building . Find the time after which both the balls will meet. (g=10 m s^(-2)) .

A ball is thrown downwards with a speed of 20 m s^(-1) , from the top of a buling 150 m high and simultane-ously another ball is throun vertically upwrds wuth a speed of 30 m s^(-1) from the foot ot the building . Find the time after wguch both the balls will meet. (g=10 m s^(-2)) .

A ball is throuwn with a speed of 20 m//s from top of a buling 150 m high and simultaneously another ball is thrown vertically upward witn a speed of 30 m/s from the foot of the builing . Find the time when both the balls will meet (g =10 m//s^2)

A ball is throuwn with a speed of 20 m//s from top of a buling 150 m high and simultaneously another ball is thrown vertically upward witn a speed of 30 m/s from the foot of the builing . Find the time when both the balls will meet (g =10 m//s^2)

A ball is dropped from the top of a building 100 m high. At the same instant another ball is thrown upwards with a velocity of 40ms^(-1) from the bottom of the building. The two balls will meet after.

A ball is dropped from the top of a building 100 m high. At the same instant another ball is thrown upwards with a velocity of 40ms^(-1) from the bottom of the building. The two balls will meet after.

A ball is dropped from the top of a building 100 m high. At the same instant another ball is thrown upwards with a velocity of 40ms^(-1) form the bottom of the building. The two balls will meet after.

A ball is thrown vertically upwards with the speed of 19.6 ms^(-1) from the top of building and reaches the earth in 6 s. Find the height of the building .

A ball is dropped from the top of a building of height 80 m. At same instant another ball is thrown upwards with speed 50 m/s from the bottom of the building. The time at which balls will meet is