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Jaya Deepika Grade: 12th pass
        
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?
2 years ago

Answers : (2)

Karan Naidu
24 Points
										
accleration=-25920 km/hr^2    time=10 seconds (approx)
2 years ago
erra akhil
208 Points
										
Dear Jaya,
v- 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.
 
2 years ago
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