MyQuestionIcon

2292

You visited us 2292 times! Enjoying our articles? Unlock Full Access!

Area of a Triangle - by Heron's Formula

An elevator i...

Question

An elevator is moving upwards with a constant speed of $10 m / s e c$ . A man standing in the elevator drops a coin from $2.5 m$ . The coin reaches the floor of the elevator after a time $[g = 10 m / s^{2}] .$

A

\frac{1}{2} s

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

\frac{1}{\sqrt{2 s}}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

C

\sqrt{2 s}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

2 s

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B $\frac{1}{\sqrt{2 s}}$

Suggest Corrections

thumbs-up

1

Similar questions

Q. An elevator in which a man is standing is moving upwards with a speed of 10 m/s. If the man drops a coin from a height of 2.45 m from the floor of the elevator, it reaches the floor of the elevator after a time (g = 9.8 m/s2)

Q. An elevator, in which a man is standing, is moving upwards with a speed of

10 m / s .

If the man drops a coin from a height of

2.45 m

from the floor of the elevator, it reaches the floor of the elevator after time

(T a k e g = 9.8 m / s^{2})

Q. An elevator in which a man is standing is moving upwards with a constant speed of 10 m/sec. If the man drops a coin a from a height

2.45 m

, it reaches the floor of the elevator after a time

9.8 m / s^{2}

Q. A man is standing in a lift moving upwards with a constant speed of

10 {ms}^{- 1}

. The man drops a coin from a height of

4.9 m

g = 9.8 {ms}^{- 2}

, the coin reaches the floor of the lift after a time

Q. A lift in which a man is standing, is moving upwards with a constant speed of

10 {m s}^{- 1}

. The man drops a coin from a height of

4.9 m

g = 9.8 {m s}^{- 2}

, the coin reaches the floor of the lift after a time

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Area of a Triangle - by Heron's Formula

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Area of a Triangle - by Heron's Formula

Standard IX Mathematics

Join BYJU'S Learning Program

CrossIcon