Home
Class 11
PHYSICS
A person in a lift which descends down w...

A person in a lift which descends down with an acceleration of `1.8 m//s^2` drops a stone from a height of 2 m. The time of decent is

A

`sqrt(2)` sec

B

`2sqrt(2)` sec

C

`1//sqrt(2)` sec

D

`(1)/(2)` sec

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

A person in lift which ascents up with acceleration 10 ms^(-2) drops a stone from a height 10 m. The time of decent is [g=10ms^(-2)]

Starting from rest, A lift moves up with an acceleration of 2 ms^(-2) . In this lift , a ball is dropped from a height of 1.5m (with respect to floor of lift). The time taken by the ball to reach the floor of the lift is ( g=10 ms^(-2) )

A man weighing 60 kg is in a lift moving down with an acceleration of 1.8" ms"^(-2) . The force exerted by the floor on him is

A coin is released inside a lift at a height of 2m from the floor of the lift. The height of the lift is 10 m. The lift is moving with an acceleration of 9 m//s^(2) downwards. The time after which the coin will strike with the lift is : (g=10 m//s^(2))

A balloon in ascending vertically with an acceleration of 1 ms^(-2) . Two stones are dropped from it at an interval of 2 s . Find the distance berween them 1.5 s after the second stone is released.

A balloon starts rising from the ground with a constant acceleration of 1.25m//s^(2) . After 8 s, a stone is released from the balloon. Find the time taken by the stone to reach the ground. (Take g=10m//s^(2) )

A balloon starts rising from the ground with an acceleration of 1.25 m//s^(2) . A stone is released from the balloon after 10s. Determine (1) maximum height of ston from ground (2) time taken by stone to reach the ground

A balloon a ascending vertically with an acceleration of 0.4m//s^(2) . Two stones are dropped from it at an interval of 2 sec. Find the distance between them 1.5sec. after the second stone is released. (g=10m//sec^(2)) .

A balloon rises rest on the ground with constant acceleration 1 m s^(-2) . A stone is dropped when balloon has risen to a height of 39.2 m . Find the time taken by the stone to teach the ground.

A balloon starts rising from ground from rest with an upward acceleration 2m//s^(2) . Just after 1 s, a stone is dropped from it. The time taken by stone to strike the ground is nearly