Please enable JavaScript.
Coggle requires JavaScript to display documents.
forces and motion - Coggle Diagram
forces and motion
resulting force
-
a resultant force is the single force and associated torque obtained by combining a system of forces and torques acting on a rigid body via vector addition.
if a resulting force acts upon an object, the object will accelerate in the force
acceleration is a change on velocity. an object can change its velocity buy changing its direction, even if it is traveling at a constant speed
forces and braking
-
the faster the speed of the vehichle the bigger the deceleration neededto bring it to a rest by a particular point.
The stopping distance of a vehicle is the distance it travels during the reaction time along with the time it takes for the car to slow
weight and mass
-
terminal velocity
-
when an object falls through a fluid, the fluid exerts a drag force on the object, resisting its motion. The faster the object falls, the bigger the drag becomes, until eventually it will be equal to the weight of the object. The resulting force is now zero, so the objects stops accelerating and moves at a constant velocity called terminal velocity
momentum
-
The lae pf conservation of momentum states that when an object interact on a closed system , the total momentum before is equal to the total momentum after
-
impact forces
the impact force that an object exerts in a collison id given by the equatrion f=(m x chnage in velocity)/time
from this equation you can see that the greater the mass the greater the impact force, the greater the change in velocity the greter the impact force, the shorter the time taken the greater the impact force.
safty increses the time of impact which reduces the change of meomtum per second which reduces the impact force
-