Question

please solve this question ..........please......


and also send me a photo of yours best film star​

Answer 1

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It is due to inertia of rest.When we are in a car moving along a straight line,we are at rest because we are not moving.with respect to people on road we are in motion but with respect to the car we are at rest.whenthe cartakes a turn,we are at rest.but because of the sudden movement of car we tend to move a little but due to inertia of rest I.e an object is in a state of rest, continues to be in a state of rest unless applied by an external force.here we are at rest but due to the turn(external force)we tend to slide to one side

Answer 2

Equations for constant acceleration:

v = Vi + a t

x = Xo + Vi t + (1/2) a t^2

here

for the high speed train

starts at 0 meters if locomotive starts at 666 meters

acceleration = negative a

v = 34.4 - a t until v = 5.83

so

5.83 = 34.4 - a t

a t = 28.6

x = 0 + 34.4 t -.5 a t^2

for the locomotive, no acceleration

v = 5.83

x = 666 + 5.83 t + 0 = 666 + 5.83 t

same x if they are at point x when their speeds are the same

so

34.4 t - .5 a t^2 = 666 + 5.83 t

solve quadratic and finish.