Is Deceleration Really a Forbidden Word in Physics? as my high school physics teacher stressed, deceleration does not exist it was a forbidden word in my introductory physics class I do indeed partly agree
SUVAT equation question: When will the car collide with the lorry . . . Homework Statement A lorry travelling along a narrow road with speed u1 applies its brakes to give a uniform deceleration of magnitude a1 At the same time a car, a distance d behind the lorry and travelling in the same direction with speed u2 , applies its brakes to give a uniform deceleration of a2 Part A Show that the car collides with the now stationary lorry if a2≤ku2^2 , and find k in
Calculation of force from deceleration? - Physics Forums Hello people In this thread I am interested in how to calculate Newtons or force from a falling object being stopped by someone or something such as a machine In my example below is a scenario- A 6000 ton ball of iron moves from directly above this person who is roughply 2 meters tall
Drag force = Mass * deacceleration? - Physics Forums The drag force on a spherical ball underwater can be calculated using its mass and deceleration, as F=ma applies in this context Deceleration is treated as negative acceleration, making it an opposing force to drag At terminal velocity, drag equals weight, but to find drag, one must account for both weight and net force Calculating drag using mass and deceleration is simpler than using the
How to calculate vehicle deceleration (time to stop) To calculate the distance a person riding a bike will roll if they stop pedaling and apply no force, we can use the equation for deceleration: a = (vf - vi) t, where a is the deceleration, vf is the final velocity (in this case, 0 m s), vi is the initial velocity (the speed at which the person is riding the bike), and t is the time it takes for the person to come to a complete stop To find
Kinematics: time for a given acceleration, deceleration and distance . . . Homework Statement Find the minimum time it takes for a an object to start and end at rest for a given fixed acceleration, fixed deceleration and distance Assume there is no maximum speed This can be modelled as a train travelling a given distance by accelerating until it hits the point where it needs to decelerate again There is never a point of constant speed Relevant Equations Kinematic
Finding the distance from deceleration • Physics Forums A lorry decelerates from 96 km h to 48 km h with a deceleration of 2 68 m s², and the goal is to find the distance over which the brakes are applied The initial speed is converted to 26 67 m s and the final speed to 13 33 m s The time of deceleration is calculated as approximately 4 98 seconds using the formula t = (v - u) a To find the distance, the kinematic equation d = v_initial * t
Car Crash Physics: Deceleration Calculations Hi, I was watching a documentary on car crashes and how designs are continually being optimised to keep passengers safe They were saying how many ‘g’s’ certain crashes were based on crumple zones, seatbelt stretch etc I was interested to do some number crunching to see how big the
How much deceleration is reasonable for a free fall impact? After a free fall from a height followed by deceleration over a distance during an impact, the shock on an object is · ɡ0 For example, a stiff and compact object dropped from 1 m that impacts over a distance of 1 mm is subjected to a 1000 ɡ0 deceleration ” Thanks, if this is true for rigid objects, than 200G seems logical in my case