You visited us 80 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard IX

Physics

Second Law of Motion

A stone of ma...

Question

A stone of mass 1 kg is lying on the floor of a train which is accelerating with $1 m s^{- 2}$ . The net force acting on the stone is

Zero

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

1 N

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

5 N

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

10 N

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

Open in App

Solution

The correct option is B 1 N
Here, mass of the stone, m=1 kg
As the stone is lying on the floor of the train, its acceleration is same as that of train.
$∴$ Force acting on the stone, $F = m a = (1 k g) (1 m s^{- 2}) = 1 N$
Note: weight of the stone is balanced by the normal reaction of the floor.

Suggest Corrections

Similar questions

Give the magnitude and direction of the net force acting on a stone of mass 0.1 kg,

(a) just after it is dropped from the window of a stationary train,

(b) just after it is dropped from the window of a train running at a constant velocity of 36 km/h,

(d) lying on the floor of a train which is accelerating with 1 m s^–2, the stone being at rest relative to the train. Neglect air resistance throughout.

Q. Give the magnitude and direction of the net force acting on a stone of mass

0.1

k g

.(a) Just after it is dropped from the window of a stationary train.(b) Just after it is dropped from the window of a train running at a constant velocity of

36

k m / h

.(c) Just after it is dropped from the window of a train accelerating with

1

m s^{- 2}

.(d) Lying on the floor of a train which is accelerating with

1

m s^{- 2}

, the stone being at rest relative to the train. Neglect air resistance throughout

Q. A stone of mass

1 k g

falls through the air. The air resistance acting on the stone is

2 N

. Find out the acceleration of the stone? Take g=

10 m / s^{2}

A man of mass 60 Kg is standing on the floor holding a stone weighing 40N. What is the force with which the floor is pushing him up?(g=10 ${m s}^{- 2}$ )

Q. Figure shows a man of mass

55 k g

standing stationary with respect to a horizontal conveyor belt that is accelerating with

1 m s^{- 2}

. The net force acting on the man is:

Join BYJU'S Learning Program

A stone of mass 1 kg is lying on the floor of a train which is accelerating with 1ms−2. The net force acting on the stone is

The correct option is B 1 NHere, mass of the stone, m=1 kgAs the stone is lying on the floor of the train, its acceleration is same as that of train.∴ Force acting on the stone,F=ma=(1kg)(1ms−2)=1NNote: weight of the stone is balanced by the normal reaction of the floor.

A stone of mass 1 kg is lying on the floor of a train which is accelerating with $1 m s^{- 2}$ . The net force acting on the stone is

The correct option is B 1 N
Here, mass of the stone, m=1 kg
As the stone is lying on the floor of the train, its acceleration is same as that of train.
$∴$ Force acting on the stone, $F = m a = (1 k g) (1 m s^{- 2}) = 1 N$
Note: weight of the stone is balanced by the normal reaction of the floor.