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

Byju's Answer

Standard XII

Physics

The 'e' Equation

A boy of 20...

Question

A boy of $20$ kg is standing on a $80$ kg free to move long cart. There is negligible friction between cart and ground. Initially, the body is standing $25$ m from a wall. If he walks $10$ m on the cart towards the wall, then the final distance of the boy from the wall will be

15

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

12.5

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

15.5

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

17

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

Open in App

Solution

The correct option is D $17$ m
undefined

Suggest Corrections

Similar questions

Q. A cart of mass

M = 100 k g

is at rest over a smooth horizontal surface. A boy of mass

m = 50 k g

is standing over the cart. If he jumps from the cart with a horizontal velocity of

20 m s^{- 1}

, the final velocity of the cart is :

Q. A boy shouts while standing between two walls. He heard two echoes with an interval of

0.25 s

in between them. If he is

60 m

away from the farthest wall, how far away is he from the other wall?
[speed of sound

= 344 m s^{- 1}

]

Q. A boy standing in front of a concave mirror of focal length

20 m

moves

2 m

towards the mirror. What is the distance moved by his image if he is initially standing at a distance of

25 m

from the pole of the mirror?

A 50.0-kg boy runs at a speed of 10.0 m/s and jumps onto a cart as shown in the figure. The cart is initially at rest. If the speed of the cart with the boy on it is 2.50 m/s, what is the mass of the cart?

Q. You are standing on a cart moving at constant speed of 20

m s^{- 1}

towards the left of a frictionless track. Suppose the mass of the cart along with your mass is 100 kg. There are 4 balls each of mass 2 kg in the cart that is now moving at a constant speed. If you throw a ball straight up with a velocity 20

m s^{- 1}

, how will the speed of the cart change?

Join BYJU'S Learning Program

A boy of 20kg is standing on a 80 kg free to move long cart. There is negligible friction between cart and ground. Initially, the body is standing 25 m from a wall. If he walks 10 m on the cart towards the wall, then the final distance of the boy from the wall will be

The correct option is D 17mundefined

A boy of $20$ kg is standing on a $80$ kg free to move long cart. There is negligible friction between cart and ground. Initially, the body is standing $25$ m from a wall. If he walks $10$ m on the cart towards the wall, then the final distance of the boy from the wall will be

The correct option is D $17$ m
undefined