Grade 12th passGeneral Physics

A car travelling at 108km/hr has its speed reduced to 36km/hr while travelling a distance of 200m. Its acceleration and time taken are?

Jaya Deepika

11 Years agoGrade 12th pass

2 Answers

Karan Naidu

11 Years ago

accleration=-25920 km/hr^2 time=10 seconds (approx)

erra akhil

11 Years ago

Dear Jaya,

v²- u²= 2 a S -------- eq.1

v=final velocity

u=initial velocity

a=accelerartion(in this case retardation)

S=distance travelled

On solving;

by converting given speeds which are in km/hr to m/s by multiplying the speeds by 5/18;

we get, accelaration=-2 m/s or -0.555km/hr.(- sign indicates retardation)

v = u + a t -------eq.2

t=time taken.

time taken = 10 sec on solving.

Approve if my answer helped you.

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A car travelling at 108km/hr has its speed reduced to 36km/hr while travelling a distance of 200m. Its acceleration and time taken are?

Jaya Deepika

2 Answers

Karan Naidu

erra akhil

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