Jenny is riding on a bus. She has been unable to find a seat and so she is standing in the aisle. Explain, in physics laws and principles, why it is important that she hold onto something while she is completing her journey.
During acceleration (or deceleration) of the bus, she continues to move in previous derection due to inertia, and, therefore, she may fall down.
thank you :)
In physics, Jenny's need to hold onto something while riding on a bus can be explained by two fundamental laws: Newton's First Law of Motion, also known as the law of inertia, and Newton's Second Law of Motion.
Newton's First Law of Motion states that an object at rest will stay at rest, and an object in motion will continue to move at a constant velocity in a straight line, unless acted upon by an external force. In this case, the bus is the external force that causes Jenny to move.
When the bus accelerates or decelerates, Jenny's body also undergoes a change in velocity. Without any external forces to counteract this change, Jenny's body wants to maintain its current state of motion due to inertia. This means that if she isn't holding onto something, her body will continue to move in a straight line at the original speed while the bus moves beneath her, potentially causing her to lose balance and fall.
Newton's Second Law of Motion helps explain why holding onto something is crucial for maintaining balance and stability. The law states that the force acting on an object is equal to its mass multiplied by its acceleration (F = m * a). When the bus accelerates or decelerates, Jenny experiences a change in velocity (acceleration) and her body must resist this change in motion.
By holding onto a handle or bar, Jenny can exert a force on the object she is holding. This force allows her body to overcome the acceleration or deceleration of the bus, preventing her from moving independently and losing balance. The greater the acceleration or deceleration of the bus, the stronger the force Jenny needs to exert to stay stable and avoid falling.
To summarize, Jenny needs to hold onto something while riding on a bus to counteract the effects of inertia caused by the bus's acceleration or deceleration. By exerting a force in the opposite direction, she can maintain her equilibrium and avoid potential falls or injuries.