MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Law of Conservation of Energy

A 40 N object...

Question

A 40 N object is released from a height of 10 m.Its kinetic energy just before it hits the ground is:

A

2800 J

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

B

400 J

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

C

1200 J

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

D

3920 J

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

Open in App

Solution

The correct option is B 400 J

Suggest Corrections

thumbs-up

2

Similar questions

Q. A 20 N object is released from a height of 10 m. Its kinetic energy just before hitting the ground is

The potential energy of a body at height h is mgh. Then its kinetic energy just before hitting the ground is

Q. A metal ball of mass

2 k g

is allowed to fall freely from rest from a height of

5 m

above the ground (Take

g = 10 m s^{- 2}

). What is the kinetic energy of the ball just before it hits the ground?

10 k g

dropped from a height

50 c m

. Find its kinetic energy just before touching ground.

Q. A man drops a 10 kg rock from the top of a 5 m ladder. What is its speed just before it hits the ground? What is its kinetic energy when it reaches the ground? (g = 10 m/s²)

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Law of Conservation of Energy

PHYSICS

Watch in App

explore_more_icon

Explore more

Law of Conservation of Energy

Standard IX Physics

Join BYJU'S Learning Program

CrossIcon