A person standing on the edge of a well throws a stone vertically upwards with an initial velocity `5ms^(-1)`. The stone gone up, comes down and falls in the well making a sound. If the person hears the sound 3 seconds after throwing the stone. The depth of water is (neglect time travel for the sound and take `g=10ms^(-2)`)

A person standing on the edge of a well throws a stone vertically upwards with an initial velocity 5ms^(-1) . The stone gone up, comes down and falls in the well making a sound. If the person hears the sound 3 seconds after throwing the the depth of water (neglect time travel for the sound and take g=10ms^(-2) )

From the top of a multi-storeyed building 40m tall, a boy projects a stone vertically upwards with an initial velocity of 10 ms^(–1) such that it eventually falls to the ground.

from the top of multi-storeyed building ,39.2 m tall , a boy projects a stone vertically upward with an initial velocity of 9.8 ms^(-1) such that it finally drops to the ground (i) when will the stone reach the ground? (ii) whn will it pass through the point of projection ? (iii) what will be its velocity before striking the ground ? take g = 10ms^(-2)

A hiker stands on the edge of a cliff 490 m above the ground and throwns a stone horiozontally with an initial speed of 15ms^(-1) neglecting air resistance.The time taken by the stone to reach the ground in seconds is (g=9.8ms^(2))

A bullet is fired vertically upwards with an initial velocity of 50 ms^(–1) . If g = 10 ms^(–2) , what is the ratio of the distances travelled by the bullet during the first and the last second of its upward motion ?

A stone is dropped into a well 44.1 deep. The sound of splash is heard 0 . 13 seconds after the stone hits the water. What should be the velocity of sounds in air .

A stone of 3kg is thrown vertically upward with an initial speed of 20m/s. If g=10 m//s^(2) , then find the kinetic energy and potential energy after 1s.