A stone is dropped from the top of a tow...

A stone is dropped from the top of a tower of height h. After 1 second, another stone is dropped from the balcony 20m below the top . Both reach the button simultaneously . What is the value of h ?

A

3125m.

B

312.5m

C

31.25m

D

25.31m

Text Solution

Verified by Experts

The correct Answer is:

C

Topper's Solved these Questions

MECHANICAL PROPERTIES OF SOLIDS
MBD PUBLICATION|Exercise QUESTION BANK |224 Videos
MOTION OF SYSTEM OF PARTICLES AND RIGID BODY
MBD PUBLICATION|Exercise QUESTION BANK|234 Videos

Similar Questions

Explore conceptually related problems

A stone is dropped from the top of a tower and travels 24.5m in last second of its journey. What is the height of the tower?

A stone dropped from the top of a tower of travel 5/9th of the height of the tower during the last second of its fall . The time of fall is.

A ball is dropped from the top of a tower 100m high. Simultaneously another ball is thrown upward with a speed of 50m/s . After what time do they cross each other ?

A ball is released from the top a tower of height h meter. It takes T second to reach the ground. What is the position of the ball in T/3 seconds.

Projectile is fired horizontally from the top of a tower of height h. Calculate time of descent

A stone is thrown upwards with a speed u from the top of a tower reaches the ground with a velocity 3 u . The height of the tower is

A stone is dropped from the 25 storey of a building and it reaches the ground in 5 second . In the first second, it passes through how many storeys ?

A stone is thrown horizontal from the top of a tower with a speed of 50m/s. Find the velocity and position at the end of 3s.

Projectile is fired horizontally from the top of a tower of height h. Calculate horizontal range

MBD PUBLICATION-MOTION IN A STRAIGHT LINE -QUESTION BANK

The velocity time relation of an electron starting from rest is given ...
Text Solution
|
The displacement of a particle after time is given by x = k/b^2 (1-e^(...
Text Solution
|
A stone is dropped from the top of a tower of height h. After 1 second...
Text Solution
|
A stone is dropped from a certain height which can reach the ground in...
Text Solution
|
A train of 100 m long travelling at 40m/s starts overtaking another tr...
Text Solution
|
A car starts from rest and moves with constant acceleration. The ratio...
Text Solution
|
A ball is dropped from the top of a tower 100m high. Simultaneously an...
Text Solution
|
The velocity v and displacement r of a body are related by v^2 = kr wh...
Text Solution
|
A car accelerates from rest at constant rate of 2m/s^2 for some time. ...
Text Solution
|
A body travels 200cm in the first two second and 220cm in the next fou...
Text Solution
|
The deceleration experienced by a moving motorboat, after it's engine ...
Text Solution
|
An object accelerates from rest to a velocity 27.5m/s in 10 secs, the...
Text Solution
|
A stone is dropped from the 25 storey of a building and it reaches the...
Text Solution
|
A ball falls from the window of a railway carriage moving horizontally...
Text Solution
|
A body is dropped from a height 39.2m. After it crosses half distance ...
Text Solution
|
A stone dropped from the top of a tower of travel 5/9th of the height ...
Text Solution
|
A food packet is dropped from a helicopter rising up with a velocity o...
Text Solution
|
A bus starts moving with acceleration of 2m/s^2. A cyclist 96m behind ...
Text Solution
|
A particle starts its motion from rest under the action of a constant ...
Text Solution
|
A ball is thrown upwards from the ground . It is at a height of 100m i...
Text Solution
|