Motion along a Straight Line
Life isn’t always straight but what if i can say motion of an objects are. So, here we are writing something about motion of objects can be.
Lets say there is a cat running in a straight line towards left without oscillating or changing its direction. This type of motion is called motion in a straight line. Another term for this motion is rectilinear motion. In this type of motion the object moves in a straight line without changing its direction until an unless compelled by external force.
When the motion is one dimensional there are basically three equations which holds true. These are
v=u+at
s=ut+(1/2)(at)²
v²-u²=2as
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where v=final velocity of the travelled object
u is the initial velocity of the object
and t is the time taken to cover a distance
s: is the total distance travelled.
now if the particle (here cat is speeding up) the acceleration is in direction of particle. if acceleration is decreasing there is retardation or negative acceleration.
lets see if there is a problem where distance traversed by cat is given as 7 m . initially cat velocity of cat is 1 ms^-¹.time taken is 1 sec find v, and a.
v= u +at
v=1+7*1
v=7 ms-¹
s=ut+1/2at^². Put values and obtain answer. Be careful of sign convention take one situation as positive and other as negative. Keep learning keep shining.
