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

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 dropped from a building of height 45 m. Simultaneously another ball is thrown up with a speed 40 m/s. The relative speed of the balls varies with time as

A ball is dropped from a building of height 45 m. Simultaneously another ball is thrown up with a speed 40 m/s. The relative speed of the balls varies with time as

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)