Asked by Don
If a truck moving at 30km/hr accelerates at 2.5m/s^2 to 50 km/hr, what time (in sec) does it take?
a. 2.22s
b. 5.56s
c. 8 s
d. 28.8s
a. 2.22s
b. 5.56s
c. 8 s
d. 28.8s
Answers
Answered by
ridhi
given;
u=30km/hr=30*10/36=8.33m/s
v=50km/hr=50*10/36=13.88m/s
a=2.5m/s^2
a=(v-u)/t
t=5.55/2.5
=2.22s
so the answer is a
u=30km/hr=30*10/36=8.33m/s
v=50km/hr=50*10/36=13.88m/s
a=2.5m/s^2
a=(v-u)/t
t=5.55/2.5
=2.22s
so the answer is a
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