Please answer...When a motor car of mass 500 kg moves on a level road with a power of 45 kW and a velocity of 54 kmh-1, the acceleration is 2 ms-2. If the road resistance is proportional to the speed of the vehicle, find the power of the car, when it travel at a maximum speed of 72 kmh-1
Answers
Answered by
0
Answer:
Answer
Open in answr app
Open_in_app
Given,
m=500g
U=20m/s
F=mav
2
−u
2
=20s
=m(
t
ΔV
)s=
2×10
20×20
=20m
=500×
2
20
=5000N
w=f.x
=5000×20
w=100kg
Explanation:
please mark me brainlist and thanks me and have nice day
Similar questions