Question

if an object is moving with constant speed of 40 km /h then there was a break then her decleration per 2 m/s to find acceleration and distance travelled note it was at rest this is the key point for you​

Answer 1

Explanation:

d=vt.

vave=12(vf+vi)

d=12(vf+vi)(t)(Equation 1)

We know that the final velocity for constantly accelerated motion can be found by multiplying the acceleration times time and adding the result to the initial velocity, vf=vi+at.

We know that vf=vi+at. ...

vf2=vi2+2ad(Equation 3)

Answer 2

Answer:

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