How long will a stone take to fall to th...

How long will a stone take to fall to the ground from the top of a building 80 m high and What will be the velocity of the stone on reaching the ground? (Take `g=10 "m s"^(-2)`)

Text Solution

Verified by Experts

4 s

Topper's Solved these Questions

LAWS OF MOTION
ICSE|Exercise EXERCISE - 3(E) (Multiple choice type)|5 Videos
ICSE ANNUAL EXAMINATION -2020
ICSE|Exercise SECTION-II|45 Videos
LIGHT
ICSE|Exercise TOPIC 2 Spherical Mirrors (4 Marks Questions )|9 Videos

Similar Questions

Explore conceptually related problems

A ball is thrown upwards from the top of a tower 40 m high with a velocity of 10 m//s. Find the time when it strikes the ground. Take g=10 m//s^2 .

How long does it take a brick to reach the ground if dropped from a height of 65 m? What will be its velocity just before it reaches the ground ?

A body falls from the top of a building and reaches the ground 2.5 s later. How high is the building ? (Take g = 9.8 m s^(-2) )

A ball is projected horizontally with a velocity of 5ms^(-1) from the top of a building 19.6 m high. How long will the ball take to hit the ground ?

A stone of weight of 2 kgf is lying on the roof of a building 60 m high. Calculate the amount of stored energy in the stone. [Take 1 kgf=10N]

A stone of weight 10 kg is lying on the top of a house 4m high. What is the amount of stored energy in the stone ? [Take 1 kgf=10N]

A ball is thrown vertically upwards from the top of a tower with an initial velocity of 19.6 "m s"^(-1) . The ball reaches the ground after 5 s. Calculate the velocity of the ball on reaching the ground.Take g= 9.8 "ms"^(-2) ?

A stone is released from the top of a tower of height 19.6m. Calculate its final velocity just before touching the ground.

Two stones are falling at a place from heights in the ratio 2:3. Their velocities on reaching the ground are in the ratio

ICSE-LAWS OF MOTION-EXERCISE - 3(E) (Numericals)

A ball is released from a height and it reaches the ground in 3 s. If ...
Text Solution
|
A ball is released from a height and it reaches the ground in 3 s. If ...
Text Solution
|
What force, in newton, your muscles need to apply to hold a mass of 5 ...
Text Solution
|
A ball is thrown vertically upwards. It goes to a height 20 m and then...
Text Solution
|
A ball is thrown vertically upwards. It goes to a height 20 m and then...
Text Solution
|
A ball is thrown vertically upwards. It goes to a height 20 m and then...
Text Solution
|
A body is dropped from the top of a tower. It acquires a velocity 20 m...
Text Solution
|
A ball is thrown vertically upwards. It returns 6 s later. Calculate t...
Text Solution
|
A ball is thrown vertically upwards. It returns 6 s later. Calculate t...
Text Solution
|
A pebble is thrown vertically upwards with a speed of 20 m s^(-1). How...
Text Solution
|
How long will a stone take to fall to the ground from the top of a bui...
Text Solution
|
How long will a stone take to fall to the ground from the top of a bui...
Text Solution
|
A body falls from the top of a building and reaches the ground 2.5 s l...
Text Solution
|
A ball is thrown vertically upwards with a velocity of 49 m/s. Calcula...
Text Solution
|
A ball is thrown vertically upwards with an initial velocity of 49 m s...
Text Solution
|
A stone is dropped freely from the top of a tower and it reaches the g...
Text Solution
|
A pebble is dropped freely in a well from its top. It takes 20 s for t...
Text Solution
|
A pebble is dropped freely in a well from its top. It takes 20 s for t...
Text Solution
|
A ball is thrown vertically upwards from the top of a tower with an in...
Text Solution
|
A ball is thrown vertically upwards from the top of a building of heig...
Text Solution
|