The speed of a car was increased from 40km/hr to 60km/hr within 5 minutes. Find its acceleration. Hint: (v=u+at).
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Answers
Answered by
1
Answer:
1/54 m/s²
Step-by-step explanation:
u=40km per hour
40×5/18
u= 100/9 m/s
b=60 km
60×5/18
50/3 m/s
t= 5 min
5×60 second =300s
v= u+80
50/3 = 100/9 + a × 300
300a = 50 / 3 - 100/9
300a=150-100
_______
9
300a=50/9
a=50/9*1/300
a=1/54m/s²
Answered by
3
Answer :
240km/hr
Explanation :
Speed of the car increased from 40km/hr to 60km/hr within 5 min. Find it's acceleration.
By the acceleration formula :
Where,
- v(final velocity) = 60km/hr
- u(initial velocity) = 40km/hr
- t(time) = 5 min or, 5/60km.
By the given values,
∴ Required answer : 240km/hr²
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