Question

when jane drives to work, she always places her purse on the passenger's seat. by the time she gets to work, her purse has fallen on the floor in front of the passenger seat. one day, she asks to explain why this happens in terms of physics. what do you say?

Answer 1

when she breaks at work place due to inertia of motion her bag wants to be in motion and falls forward from that seat

Answer 2

In terms of physics, the phenomenon of the purse falling down can be explained as follows:

When Jane applies a break, the surface of the road exert a backward force on the tires. Due to this, the car will decelerate. However, the purse continues to decelerate in a straight line. When brake is applied, the friction between  the purse and the car seat is not enough to decelerate the purse as quickly as the car is decelerating. Hence, the purse will slide off the seat, and gravity will pull it to the floor.