badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: 11

                        

Why do you fall forward when a moving bus decelerates to a stop and fall backward when it accelerates from rest? Subway standees often find it convenient to face the side of the car when the train is starting or stopping and to face the front or rear when it is running at constant speed. Why?

5 years ago

Answers : (2)

Aditi Chauhan
askIITians Faculty
396 Points
							Newton’s first law states that, without any external force, if a body is at rest, it will remain at rest and if the body is moving with constant velocity, it will continue to do so.
When the moving bus decelerates, due to inertia, the body will tend to move in the forward direction of the bus. Therefore, you fall forward when the moving bus decelerates to a stop. Again, when the bus accelerates from rest, due to inertia, the body will tend to maintain the rest position. That is why; you fall backward when the bus accelerates from rest.
The tendency of a body to remain at rest or in uniform linear motion is called inertia. The reference frame to which it applies is called inertial frames. When the train is starting or stopping, there is no net force acting on the observer. So the observer is in the inertial frame. That is why; it is easy to face the side of the car because both the frame (one is observer in the car and the other one is the outside of the car) are in rest. But when the car is running at constant speed, the observer in the car does not remain at rest. The frame is not an inertial frame. That is why; it is easy to face the front or rear when the car is running at constant speed because the car is in the forward direction.
5 years ago
Vishnu Dehru
15 Points
							
We fall in the forward direction when the bus decelerates to stop because when the bus was in motion,our body was also in motion and when the bus stops then the inertia of our motion tends us to remain in motion and that is why we fall in forward direction.On the other hand,we fall in backward direction when the bus accelerates to start because before accelerates both the bus and we were at rest and when the bus does a motion then the inertia of our motion tends us to remain at rest and that is why we fall in backward direction.
 
 
2 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 101 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details